|
Eastern
Meadowlark
Sturnella magna
Contributed by Alfred Otto Gross
[Published in 1958:
Smithsonian Institution United States National Museum Bulletin
211: 53-80]
The meadowlark is the outstanding and the most characteristic
bird of the American farm. It is revered by the farmer not only
because of its charming simplicity and its cheerful, spirited
song, but also for its usefulness as a destroyer of harmful
insects and the seeds of obnoxious weeds. The coming of the
meadowlark in the early spring, while the fields are still brown,
is a thrilling event. His arrival is made known by his plaintive
but not complaining or melancholy song as he stands mounted atop
some tall tree in a grassy meadow, with his bright yellow breast
surmounted by a black crescent gleaming in the morning sun.
The meadowlark has the build and the walk, as well as the
flight, of the quail; and since it frequents the marshes,
especially in its winter quarters, it has sometimes been called
the marsh quail. This name has probably lead many a hunter to
think of it as a game bird. Fortunately in recent years fewer
meadowlarks are killed for food, and this may be at least one
factor responsible for the increasing numbers as well as the
extension of its nesting range.
When I first came to Maine 35 years ago the meadowlark was a
comparatively rare bird in the southern part of the state. Since
that time it has steadily increased in numbers, until today almost
every suitable meadow and grass field has its quota of
meadowlarks. Similar increases in the number of meadowlarks have
been reported from other sections of its range. Milton B. Trautman
states in a letter that he counted 400 pairs of meadowlarks while
walking through suitable fields, during the course of a few days
in the Buckeye Lake region, Ohio. He estimated the amazing number
of 1,400 pairs as nesting in the area, an average of 1 meadowlark
for every 7 acres, or about 91 to the square mile.
In 1906 - 1908 I conducted the fieldwork of a statistical
survey of the birds of Illinois for the Illinois Natural History
Survey. In making the census counts, I walked many times through
fields and woods over the length and breadth of the state. An
assistant traveled at 30 yards distant and parallel to my line of
march and was responsible for measuring the distance of each field
traversed in terms of paces, which later were translated into
feet. The species and the numbers of birds flushed in a strip 50
yards in width, including those flying across the strip within a
hundred yards to our front, were recorded. Thus we covered all
types of crops and vegetation during all conditions of weather and
at all seasons of the year to obtain a comparative sample of the
birdlife. During the summer months alone an area equivalent to
7,793 acres was covered, on which 85 species of birds were
recorded. The meadowlark proved to be the most abundant of the
native Illinois birds, being represented by 1,025 individuals, or
13.2 percent, of the total bird population. There was an average
of 85 meadowlarks to the square mile for the whole area traversed.
As the birds were unequally distributed, never occurring, for
example, in woodlands or among shrubbery, their numbers rose to
266 to the square mile in stubble, 205 in meadows, 160 on untilled
lands, 143 in pastures, and 131 on wastelands, but fell to 10 per
square mile in fields of corn.
The meadowlark population varied in numbers from the northern
to the southern part of the state, 100 in northern Illinois being
represented by 175 in the central and by 215 in the southern part.
The center of density of the summer meadowlark population at that
time was in the southern section, and during the winter months the
concentration of meadowlarks in southern Illinois reached an
average of 373 per square mile. Many of the birds which nest
further north winter in that section of the state.
From various reports I have recently received from the Middle
West, it is probable that if the census were repeated today the
average meadowlark population would exceed the average of 85 to
the square mile obtained during the summer months of 40 years ago.
Spring.--The migration of the
meadowlark is a comparatively limited movement, and the bird
retires completely from only the most northern sections of its
breeding range. It is a regular winter resident as far north as
Maine, southern Ontario, and Michigan; and the southern summer
residents do not go beyond the Carolinas, Alabama, Louisiana, and
southeastern Texas. In spring the migrants reach Missouri and
southern Illinois by the middle of March, arriving in the north
central states during the first weeks of April, and in Minnesota
and the Dakotas usually during the latter part of the month. The
first arrivals in Manitoba, Saskatchewan, and Alberta appear in
the last of April or the first week of May. The vanguard of the
migrants reaches southern New England about the middle of March,
and a marked movement extends well into April.
According to William Brewster (1886b), the meadowlarks are
among the birds which migrate exclusively by night. He states:
"Species which migrate exclusively by night habitually feed
in or near the shelter of trees, bushes, rank herbage or grass,
and when not migrating are birds of limited powers of flight and
sedentary habits, restricting their daily excursions to the
immediate vicinity of their chosen haunts. As a rule they are
timid, or at least retiring disposition, and when alarmed or
pursued seek safety in concealment rather than extended
flights."
Meadowlarks migrate by night because they are either afraid to
venture on long exposed journeys by daylight, or unable to
continue these journeys day after day without losing much time in
stopping to search for food. By taking the nights for traveling
they can devote the days entirely to feeding and resting in their
favorite haunts.
Milton B. Trautman (1940) in his observations at Buckeye Lake,
Ohio, differs from the conclusions reached by Brewster. He writes:
Few Eastern meadowlarks were seen or heard migrating in very
late evenings and early mornings, but many more were observed in
the daylight hours. In late March and April individuals and loose
flocks of as many as 60 flew northward at a low elevation across
the lake. Loose flocks of 5 to 100 birds were often observed
flying during spring and fall. The flocks generally flew a short
distance and began to feed. Presently, those in the rear rose into
the air and, flying over the flock, alighted in front to feed
again. This maneuver was many times repeated. When the flock
reached an obstruction, such as woods, cattail swamp, or lake, it
flew over in a long loose column. The flocks traveled in this
leisurely manner 2 to 6 miles an hour. Sometimes the flocks
stopped feeding and flew 1 to 3 miles at a low elevation before
dropping to the earth to feed again.
At Ithaca, N. Y., G. B. Saunders has found that the first
meadowlarks to be seen early in the year are males. As early as
January young birds which may be classed as vagrants are reported.
Upon the advent of warmer weather more vagrants which have
wintered only a short distance to the south wander in, feeding in
manured fields and about farm buildings. Stormy weather often
covers the fields with snow and sends them into barnyards where
they may pick their food along with domesticated animals. Not
infrequently many of these early meadowlarks perish in the long
blizzards which put an end to their food supply.
Later, usually about the middle of March, the first migrants
appear. These are old males, few in number and quiet in manner,
which have wintered far to the south. By the end of March the
migrant males become abundant. Song is less common among these
early flocks of migrants than among the first resident males,
which come a week or so later. When these arrive in the latter
part of March they are active in the mornings and late afternoon,
but during midday they often retire to a common feeding ground
which the birds from different territories share without any
apparent hostility. Their early song, although sweet and full of
spirit, is not of the brilliance which characterizes it in April
when the first resident females arrive.
Groups of migrants and resident males continue to arrive until
the latter part of April. The last resident males establish
themselves in areas left by the first wave of migrants, or carve
their territories from the domains of earlier males unable to
defend their original holdings. The migrants remaining in flocks
resume their journey northward.
The vanguard of migrant females arrives 2 weeks or more after
the first resident males and are followed closely by the first
resident females. The coming of the resident females stimulates
the first song peak of the males, whose songs become longer and
more brilliant and animated. They engage in territorial combats
over females, in defense displays and sexual flights, as well as
posturing and sexual displays for the benefit of the female. The
female is at a much lower sexual pitch at this time and responds
only by preliminary stages of posturing such as the erection of
the body to a vertical position, pointing her bill upward and
twitching her wings. Late in April she reaches the necessary
sexual level and begins building the nest and laying the eggs.
Other migrant and resident females, which are young birds,
continue to come in April and May and even in June and July. These
birds, which are late in maturing, become mates of polygamous or
late arriving males, or remain unmated.
The following accounts of territory and courtship are based
primarily on an exhaustive treatment of the subject contained in
an unpublished thesis, submitted at Cornell University in 1932 by
George Bradford Saunders ("A Taxonomic Revision of the
Meadowlarks of the Genus Sturnella Vieillot and the Natural
History of the Eastern Meadowlark Sturnella Magna Magna
Linnaeus").
Territory.--Soon after his
arrival during the latter part of March, the resident male leaves
his companions and selects a territory, preferably a grassland or
meadow, because of the great abundance of food as well as his
decided liking for this type of habitat. The size and shape of the
territory depend chiefly on the area of suitable land available,
the local abundance and strength of competing males, the relative
concentration of food supply, and certain barriers and individual
range requirements of the male. The size of the territory may be
increased as a result of polygamous relations, particularly if the
females choose widely separated nesting sites, but the average
size of 15 territories at Ithaca, N. Y., was found to be 7 acres.
There is a decided difference between the total area of the
territory and that which is regularly used. The more concentrated
the food supply the less need there is for foraging, and the
smaller the area frequented. Of two territories studied by G. B.
Saunders throughout the breeding season of 1931, one contained 9
and the other 20 acres; but due to the abundance of food in a
meadow separating the two families, one monogamous and the other
with three females, this common feeding ground was shared. In each
territory, however, the area of land used regularly was the same,
6 acres.
Important to the male are the various commanding perches from
which he can survey his territory. Telephone wires or electric
power lines with unobstructed views often furnish favorite song
and lookout posts. Mounds of earth, farm implements, and fence
posts provide perches near the ground. During the first few days
of his occupancy he visits them from time to time and selects one
for his primary headquarters. Here he sings and watches during the
day, usually roosting nearby at night. This territorial center is
frequented faithfully during the entire season, unless his routine
is changed by polygamy, in which case secondary headquarters are
often established nearer his mates. As he may have as many as
three females, each having two broods, the chief center of
interest in the territory may change as each female reaches the
peak of sexual responsiveness.
By intimidating songs and alarms, displays and disputes, the
male meadowlark defends his domain against the encroachment of
covetous rivals. It is clear that from the beginning of his tenure
the male has a definite conception of his territorial acreage and
chases all resident males of his species beyond these boundaries.
The competitors may come to blows, but it is usually a matter of
vehement displays or competitive singing, ending when the
vanquished bird takes wing. The loser may be pursued rapidly as
far as the boundary line; the victorious male then returns to the
sentinel station, singing a spirited flight song as he flies. G.
B. Saunders describes a territorial flight he observed on March
25, 1929: "My attention was drawn to two birds fighting
savagely in the grass. From a distance I could see the flashing
white rectrices and was able to identify them as meadowlarks. One
male was on top of the other jabbing him fiercely with his long
bill. Then they rolled about for a moment wrestling and stabbing
with their feet locked together. Instead of taking wing they
hopped at each other, grappled, and again fell on their sides.
Wings were held loosely and white tail feathers flashed repeatedly
as their tails opened and closed spasmodically. After more than a
minute of jabbing, one bird arose and flew, pursued hotly by the
victorious contestant who gave a jubilant flight song during the
chase."
Courtship.--The arrival of the
females on the breeding territory stimulates the resident males,
who by this time are well prepared for an animated and lively
courtship, to a frenzied rivalry that often becomes furious. Two
rival males have been seen tumbling about on the ground on their
backs with their feet firmly locked together, striking at each
other with their bills in mortal combat.
The courtship is featured by elaborate displays, spectacular
flights, and intensive singing. G. B. Saunders describes a
performance he observed from a blind on April 16, 1931:
"Today instead of witnessing the usual routine I observed the
first resident female seen since the preceding fall serve as the
center of attraction for three competing males. As I reached the
blind all four birds took wing and began a most exciting and
spectacular chase in which they zig-zagged back and forth,
describing circles 200 yards in diameter and maintaining for the
most part a steady flight, but occasionally sailing on set wings
or giving pulsating strokes. Throughout most of the exhibition the
female was pursued by all the males, but now and then two of the
latter would engage in a private chase after each other (rarely
striking in midair) only to return quickly to the magnetic female.
Finally all four came down to the spot from which they had flown.
The female began walking about, feeding in the short grass;
occasionally she paused to give a conversational chatter that
impressed me as being softer, finer, and more modulated than the
alarm chatter. The males vied in following her, first one then
another arching his body, pointing his bill up, and flying jerkily
toward her at an elevation of from 3 to 6 feet. At times they
would walk near her with quick, short steps, their bodies held
vertically, bills pointed to the zenith, wings twitching so
rapidly that the remiges (particularly the tertiaries) described a
blurred arc above their backs, and tails convulsively spreading
and flashing the white areas. Then they would spring into the air,
fanning their wings powerfully but jerkily for six or eight
strokes. This 'jump flight' apparently serves two purposes, that
of displaying to the female, and of observing and intimidating
other males.
"In this way the four birds proceeded for some 50 yards,
the female for the most part apparently uninterested but
occasionally pointing her bill, twitching her wings and tail, and
revealing her excitement. The males at such times would attempt to
intimidate each other with violent displays. The female would
chatter her approval. After several minutes all four birds flew
out of sight, but very soon one male returned followed by the
female. Now and then a new note which sounded like the beert
of the nighthawk was given. She resumed her feeding, while he
continued to post himself nearby. Instead of making himself tall
and slim however, he fluffed out his body feathers until the
yellow breast he presented to her gaze was a broad, flat golden
shield set with a shining black gorget. He continued to make
advances, pointed his bill upward now and then, flirted his wings,
etc. She chattered or gave the weet, weet, weet call in
answer to almost every song. It is noteworthy that while he alone
was displaying, he did not sing. Then, resuming his perch at
headquarters, he sang brilliantly for 19 minutes, averaging 11
songs per minute. During the next 4 days he continued to spend
much of his time near her, frequently displaying and posturing,
but she seldom displayed, usually continuing to feed quietly near
him."
The usual courtship display of the male is summarized by
Saunders as follows: "Taking a direct stance near the female
he raises his body to its full height, stretches his neck to its
full length, and points his bill to the zenith. The tail is
fanned, showing all the white, and is also jerked up and down; the
wings are flirted rapidly over the back, either simultaneously or
alternately; and the breast feathers are fluffed out to form a
lovely shield of contrasting yellow and black. The beert
note may be given. He may spring from the ground as has been
described, even flashing his tail in midair.
"The female's reaction to this performance is to raise her
body to its full height, stretch her neck, and point her bill;
flashing her wings and tail in answer to his song and chattering
or giving a beert.
"Throughout this period they spend much of their time
together. When he is aloft singing she is usually feeding or
perching nearby. As a rule, however, she frequents an elevated
perch much less often than the male and seems less sure of herself
while doing it. If he is singing, she often answers each song with
soft conversational chatter, 'dzert-tet--tet-tet-tet.' They
seem to enjoy their companionship very much, remaining together in
long flights across the territory to feeding grounds and
maintaining this proximity while feeding; and occasionally
indulging in a sexual flight, the male singing a beautiful flight
song. After such a flight he often repeats his sexual advances in
a more or less obvious manner, but she responds either weakly or
not at all. While feeding, they pass hours in which little if any
show of sexual interest is witnessed."
Nesting.--The meadowlark is
primarily a bird of the grasslands, meadows, and pastures; and it
is in such places that we usually find its nest. I have also found
them in corn, alfalfa, and clover fields and weedy orchards, as
well as in grassed islands among plowed fields. The nest is made
of dried grasses lined with finer materials. In Illinois I have
found nests lined with small amounts of horsehair; in Maine, wiry
grasses and even pine needles are sometimes employed for this
purpose. Most of the nests have a dome-shaped roof constructed of
grass more or less interwoven with the attached and growing parts
of the clump of grass or weeds against which it is built. The
interior of the nest is open to view from only one side, and this
opening may be more or less obscured by overhanging grasses.
Sometimes there is a covered passageway to the nest especially to
those built in a field where the tall grass was not cut during the
previous season. Some of the nests are so well hidden that they
are difficult to find, and are discovered only when the bird is
flushed by the accidental encroachment of someone walking through
the field. The colors and markings of the plumage blend so
perfectly with the surroundings that if a nesting bird could
restrain its fear, a person might pass within inches of a nest and
never be aware of its presence. Most nests that I have found were
those I nearly trampled under my feet. Most nests are built in a
small depression of the ground, the depth of which may be
augmented by some excavation by the bird until it is about 1 to 2
1/2 inches deep. Skutch writes of a nest he found in an alfalfa
field near Ithaca, N. Y., on May 26, 1931; it was a sparse
structure of grasses only half covered over and set in a
depression of the ground so that the upper side of the five eggs
were about level with the surface of the field.
The nest varies in size and bulk according to the situation in
which it is found. Of five nests measured, the average total
height was 7 inches, the outside diameter 6 1/2 inches and the
inside measurements of the nesting cavity approximately 4 by 5
inches. The average opening is 3 1/4 inches wide and 4 inches
high.
A. C. Bent found an unusual nest containing three eggs in an
unusual site at Sea Isle City, N. J., on June 23, 1928. Located in
short grass on Black Rail Marsh, it was made of dried coarse
grasses, completely arched over with a thick, dense canopy of
coarse dry grasses and weeds, and was much like the nest of the
black rail in appearance. He found another nest containing four
eggs among the beach grass at Chatham, Mass., on May 28, 1904,
sunk into the sand just back of the crest of the beach.
F. W. Rapp reports a meadowlark's nest, containing four eggs,
which was located within 9 feet of the track of the Grand Trunk
Western Railroad. Trains running at a high rate of speed, making
much noise and jarring the ground, apparently did not disturb the
birds. The nest, in short grass, was completely covered over with
dried grasses and the entrance was away from the tracks.
Robert L. Denig (1913) reports unusual conditions under which a
meadowlark nested at Wakefield, Mass., where the U. S. Marine
Corps conducted rifle practice during the summer of 1909. Mounds
of earth about 3 feet high were built to elevate the firing points
at 100-yard intervals. The meadowlark built its nest on the far
side of the 400-yard mound directly in line with the target, so
that the muzzle of the rifle of the man lying on the mound was
directly over the nest and not more than 2 feet above it. At first
when the firing skirmish line was about 400 yards distant, the
birds would fly away; but as the practice continued they became
more and more accustomed to the noise; they would allow the men to
approach nearer and nearer before leaving the nest and would
return at once when the firing ceased at that point. As the time
came for the eggs to hatch, one of the birds would remain on the
nest throughout the firing, even when the gun was being discharged
directly over its head, not more than 2 feet away. Finally, the
eggs hatched, and the young birds were brought up, so to speak,
"under fire."
G. B. Saunders provides the following notes on nest building:
At Ithaca, N. Y., the meadowlark begins nesting in late April or
early May. The time required for building the nest varies from 3
to 18 days. One pair began carrying nesting material on April 20
and completed the nest on May 8, another began building on April
21 and finished on May 8. Still another began carrying grass on
June 3 and finished her nest and laid her first egg on June 6. In
every case except the last one mentioned, several nests were
started and worked upon. Usually the first beakfulls of nesting
materials are deposited at different places and at first there
seems to be no concentration on any particular location. During
these first days copulation with the male takes place. When the
female is responsive to the advances of the male she crouches
close to the ground, shortens her neck, and points her bill upward
at an angle. She flutters and flirts her wings and lifts and
spreads her tail. The male displays a few feet distant, and the
copulatory act is finally achieved with no sounds being uttered by
either bird.
Trips with nesting material are most frequent early and late in
the day, but may sometimes continue during midday as well. The
details of nest building are presented in the following typical
case. On May 12, 1931, a nest which Saunders had under observation
was scarcely begun, but both cup and roof had been started. A
natural depression 2 inches deep had been slightly modified by the
female, who used her bill for the retouching. Into this cavity a
thin layer of last year's grass blades had been laid. Much of the
tuft of grass surrounding the cup had been arched over it and
woven together, being secured by a few long dry grass stems woven
among the growing blades. In half a morning's work she had both
the cup and roof well started. The male gave no assistance in the
enterprise and offered none later.
On May 13 as well as on the two following.days, the female made
regular trips with material every 5 to 10 minutes. She usually
remained at the nest from 35 seconds to 2 minutes placing the
material that she had brought. On this day the nest was half
completed; the lining of the bowl was much deeper but was still
flimsy. On May 15 the nest was complete except for occasional
additions of material. The first egg was laid on May 17.
Occasionally the building continues for several days after egg
laying is begun.
Saunders' observation of the nest-building process is thus
summarized:
Following the choice of a nesting site, the customary first
step is to prepare the earthen foundation for its cup of withered
grass. There may be a natural depression, a hoofprint or similar
hollow already present, in which case the female remodels it by
using her bill as a combination pick and forceps tool. In some
soil the marks of her heak remain after the young have departed.
The use of the bill for digging the soil is not surprising, for
the habit is often shown in feeding, when the meadowlark employs
it to probe for insects and grain and to dislodge clods of earth.
Once the hollow is satisfactory, the adjacent grasses or
other growing plants are pulled over the pit and interlaced, or
secured by the addition of long stems or blades of dead grass
until they form a more or less complete dome which later conceals
the eggs from view and protects them from the sun and rain. Other
nests are not below the general surface level but are built
entirely above it, there being a front step as a result of this
variation in architecture.
The cup and nest lining are usually fashioned while the dome
is in the process of construction, first one part and then another
receiving the attention of the female. Many more than a hundred
loads of dried grass going to the making of the finished home.
Although many authors credit both sexes of the eastern meadowlark
with the job of building, I have never observed a male sharing in
this activity. Perhaps he does, but such a male would be an
exceptional individual, and a far more helpful mate than any of
the dozen males which had their intimate lives scrutinized daily
during my study at Ithaca, N. Y.
G. B. Saunders, the first to discover the common practice of
polygamy among meadowlarks, reports that the secretive nature of
the females and the inconspicuousness of their nests are two of
the principal reasons why the eastern meadowlarks have been able
to keep their polygamous habits a secret for so long. Although
meadowlarks breed in every one of the 48 states and are abundant
in most of them, no mention has appeared in the voluminous
literature on Sturnella regarding the frequent bigamy of
the males of this subspecies. His intensive field work in more
than 20 territories at Ithaca, N. Y., in 1931 revealed that about
50 percent of the males were polygamous. One of them was found to
have three females, all of which were nesting at the same time. He
adds that among the several reasons why polygamy is common among
meadowlarks is the fact that the females are not hostile to one
another as they are in many other species; they feed together,
associate with the male together, and often nest within 50 feet of
each other. Another is that the males are repeatedly attracted by
desirable females.
Eggs.--The number of eggs of a set of
the meadowlark varies from three to seven, but sets of five eggs
are most common. Sets of four are more usual in the second brood
nests of the season. Birds breeding in the southern part of the
nesting range on the average lay smaller sets.
According to Bendire (1895):
The eggs of the Meadowlark vary considerably both in shape
and size; the majority are ovate, while others are short,
elliptical, and elongate ovate. The shell is strong, closely
granulated, and moderately glossy. The ground color is usually
pure white; this is occasionally covered with a pale pinkish
suffusion, and it is very rarely pale greenish white. The eggs are
more or less profusely spotted, blotched, and speckled over the
entire surface with different shades of brown, ferruginous, pale
heliotrope purple, and lavender; these markings generally
predominate about the larger end of the egg, and are rarely heavy
enough to hide the ground color.
In some sets the markings consist mainly of a profusion of
fine dots; in others the spots are well rounded and fewer in
number; and again they occur in the shape of irregular and coarse
blotches, mixed and finer specks and dots; in fact, there is an
endless variation in the style of markings.
The average measurement of a series of two hundred and one
specimens in the United States National Museum collection is 27.75
by 20.35 millimeters, or 1.09 by 0.80 inches. The largest egg
measures 30.78 by 22.61 millimeters, or 1.21 by 0.89 inches; the
smallest, 21.59 by 18.29 millimeters, or 0.85 by 0.72 inch.
Ninety-five eggs weighed by G. B. Saunders had an average
weight of 6.6 grams, a minimum weight of 5.4 grams, and a maximum
weight of 7.7 grams. Eggs of any one clutch are usually similar in
size, coloration, and weight. He found that of 85 eggs in 20 nests
found at Ithaca, N. Y., 14 eggs, or 15.5 percent, were sterile.
Incubation.--When an average
clutch of five eggs is laid, incubation may begin with the
deposition of the third, the fourth, or the fifth egg, but more
frequently begins with the laying of the fourth egg. The
incubation period is usually 14 days, but under certain unusual
conditions it may be only 13 or as many as 15 days.
Although the male has been credited with a share in incubation,
Saunders has never witnessed any such cooperation in the many
nests that he has closely observed. Once incubation has begun the
female remains on the eggs most of the day, leaving only long
enough to feed. The nest is never left at night unless she is
frightened by an intruder. During 12 hours and 40 minutes of
daylight, one female spent 9 hours and 40 minutes, or 76 percent
of the time, on the nest. The longest absences from the eggs were
during the middle of the day when the temperature was highest. On
cool or rainy days less time is spent away from the nest.
While incubating, the female is continually active. These
activities include listening to songs and sounds of approaching
danger, "humming" when the male sings, turning the eggs,
feeding on insects which come within reach of the nest, probing in
the nest, rearranging nest materials, preening, etc. The female on
the nest often responds to the flight song of the male by voicing
low, sweet chuckling notes that are unlike any others uttered by
the meadowlarks. The softness of these sounds precludes their
detection by man at distances greater than 15 or 20 feet. The eggs
are turned many times during the day, and in the course of 1 hour
in the late afternoon a female was observed to turn them five
times. The eggs do not hatch in the order that they are laid; for
example, the fourth egg may hatch several hours in advance of the
third. Individual variation in development causes differences of
several hours or even a day in the hatching time.
Young.--The young at the time of
hatching, according to G. B. Saunders have a smooth orange-red
skin; the bill and nails are flesh color; and the natal down is
pearl gray. The down is longest on the capital and spinal tracts
and shorter on the humeral and femoral tracts. When the down is
dry it fluffs out and appears quite abundant, particularly on the
spinal tract. On the head the down is localized chiefly above the
eyes and on the occiput. The dark sheaths of juvenal feathers are
visible on the dorsal surface of the head and on the spinal and
dorsal regions, and less easily discernible in the humeral, alar,
femoral, and crural tracts.
Shortly after hatching, the nestling reacts to the food call of
the female and holds up its mouth in a wobbly and uncertain
manner, at the same time uttering weak notes, see see or seep
seep. The female during the first few days spends long hours
in the nest brooding the nearly naked young. The young are fed by
both the male and female but the male feeds them much less often.
During the first 2 days the young evacuate in the nest, being too
weak and lacking the instinct to void their droppings outside the
doorway. Later, by the third or fourth day, each youngster may be
observed to turn about and expel the mucous-covered sac beyond the
rim of the nest. These sacs are removed by the adults but in the
early stages of the development of the young they may be eaten.
Egg shells are removed to a considerable distance by the female
immediately after the young are hatched. Infertile eggs are
usually left in the nest during the entire period of occupation.
By the third or fourth day a slitlike opening appears in the
eyelids, so that the youngster can see whenever it is fed or
disturbed. At other times the eyes remained closed. The position
of the young birds is now more upright and alert, and the wings
have grown enough to be useful as props for maintaining balance.
The legs are still almost useless; there is little muscular
coordination and they are well sprawled out at the sides.
By the fifth day the eyes are fully opened and the voice is
stronger. The nestlings now face the opening of the nest,
expectantly waiting for food. Growth is rapid, and the juvenile
plumage is rapidly acquired. When disturbed, the young now exhibit
signs of fear. Wing exercises and stretching of the legs and neck
are indulged in frequently.
By the eighth day the young are very alert and receptive to
sounds coming from outside the nest. They may be seen frequently
preening their feathers, apparently to facilitate the unsheathing
process. During the remaining days in the nest the young become so
active the nest is wrecked and the roof worn away, exposing the
nestlings to view and to the hot, direct rays of the sun. When
thus exposed to the sun they pant violently in order to control
their temperature. Sometimes they leave the nest, but return after
being fed.
By the eleventh or twelfth day the birds normally take their
final leave of the nest, although if molested they may desert it
as early as the eighth day. Feather growth of the wing tracts has
proceeded sufficiently by the eleventh day to allow the nestling
to fly, in case flight is necessary. However, the newly departed
young meadowlark seldom takes to its wings during the first few
days except to make short jumps in the grass. The young are fed by
the adults for a period of at least 2 weeks or longer after they
leave the nest. Their food call is a loud bisyllabic tseup,
tseup, and it is by these notes that they are located and fed
by the adults. The second nest may be started within 2 or 3 days
of the desertion of the first one. While the female is building
and laying she continues to feed the first brood, but when the
second incubation is begun the male assumes the major part of the
work of caring for the young of the first brood, which are about 3
weeks old at this time.
Gradually they learn to catch insects for themselves and become
more and more independent. When they are able to shift for
themselves, they are apparently chased out of the territory by the
male. They probably do not travel far before September, when they
acquire their first winter plumage.
Four birds taken from a nest when 8 days old were raised in
captivity by G. B. Saunders. Since they were given long hours of
freedom in their native fields, their development and habits were
similar to those of wild juveniles. On the fifteenth day they all
took dust baths, fluffing and shaking their plumage as adults
would, Following this exertion they drank heartily from a basin of
water. On the sixteenth day they began prying into the soil with
their bills, which marked the inception of the boring habit which
is so typical of the adults. On the seventeenth day they began to
stand high on their legs and to hold bodies erect whenever they
heard a sound which startled them. On the twentieth day one was
observed to take a thorough bath in the water, after which he
spent several minutes in a systematic dressing of his plumage,
during which he apparently used his oil gland frequently. On the
twenty-second day, two of the four began feeding for themselves;
before that Saunders had been feeding each bird about 175
grasshopper nymphs daily. On the same day one of the two that had
begun feeding themselves gave a rolling chatter very similar to
that uttered by the adults.
Plumages.--Jonathan Dwight, Jr.
(1900) gives the following description of the plumages and molts:
Juvenal plumage acquired by a complete moult. Above,
clove-brown, the feathers broadly edged with buff palest on the
nape, those of the back having double subapical spots of russet.
Median crown stripe, and superciliary line cream-buff. Wings
sepia-brown, the primaries and secondaries obscurely barred on the
outer web with darker brown and edged with pale vinaceous cinnamon
shading to white on the first primary, the tertials clove-brown
broadly edged with buff and having a row of partly confluent
vinaceous cinnamon spots on either side of their shafts producing
a barred effect, . . . the rest of the wing coverts obscurely
mottled with light and dark browns and edged with buff, the alulae
with white. The three outer pairs of rectrices are white with a
faint dusky subapical shaft-streak, the next pair largely white
and the others hair-brown confluently barred with clove-brown, and
whitish edged. Below, including "edge of wing" pale
canary-yellow, nearly white on the chin, the sides of the throat,
breast, flanks, crissum and tibiae washed with pinkish buff,
streaked and spotted with brownish black which forms a pectoral
band. Bill and feet pinkish buff, the former becoming slaty, the
latter dull clay color.
First Winter Plumage acquired by a complete post-juvenal
moult beginning about September first after the juvenal dress has
been worn a long time, young birds and old becoming practically
indistinguishable.
Above, similar to the previous plumage, but all the browns
even to the wing and tail quills much darker, often black, and
distinct barring rather than mottling, the rule. The feathers of
the back have large single subapical spots of rich Mar's-brown
crossed by two faint dusky bars, and the primary edgings are
usually grayer. Below, a rich lemon-yellow (including the chin and
supraorbital dash) veiled with buff edgings and a black pectoral
crescent is acquired completely veiled with deep buff and ashy
edgings. The streakings below are heavier and darker, many of the
feathers with subapical russet spots and the wash on the sides is
deeper and pinker.
First Nuptial Plumage acquired by wear which is excessive by
the end of the breeding season producing a dingy brown and white
appearance above with yellow and black below. The subapical spots
of the feathers of the back are almost entirely lost by abrasion
and the same force scallops out the light portions of the
tertiaries, wing coverts, and tail. Neither the yellow nor the
black below fades very appreciably, but the shining denuded shafts
of the feathers project far beyond the abraided barbs. The yellow
seems even to be intensified by the loss of paler barbules.
Adult Winter Plumage acquired by a complete postnuptial
moult in September. Usually indistinguishable from first winter
dress.
Adult Nuptial Plumage acquired by wear as in the young bird.
Female: In natal down and juvenal plumage the sexes are
indistinguishable. Later the female differs only in slightly
duller colors and a more restricted black area on the throat. The
moults are exactly the same as in the male.
Abnormal plumages involving albinism and melanism are known to
occur in the meadowlark. The majority of the cases of albinism
which have been reported are actually only partially albinistic;
in most the brown of the upperparts is white or whitish, whereas
the yellow of the underparts seems to be retained in varying
degrees of intensity .
James Savage (1895) collected an albino meadowlark near
Buffalo, N. Y., in which "The usual brown of the upper parts
was of a pale buff color with the pattern of the feather markings
indistinctly discernible, while the yellow on the breast was as
pure as in an ordinary Lark."
Louis S. Kohler (1915b) gives an account of a partial albino
meadowlark he observed near Bloomfield, N. J.: "On October
7th during the afternoon while strolling over the fields I came
upon a partly albino bird. This bird was of normal plumage except
the tail and wings in which parts, more than half the feathers
were devoid of color. This bird during its association with others
of its kind was continually being attacked and presented a very
bedraggled appearance from their frequent onslaughts and was
forced into solitude by them at close intervals. But in spite of
their pugnacity it always returned to the vicinity of its
tormentors and was immediately set upon and driven off."
G. B. Saunders states: "There is an albino eastern
meadowlark in the Cornell University museum which has upperparts
and wings whitish, the bill pale brown, the jugular crescent buffy
brown, but the yellow underparts nearly normal." There are
many other similar cases of partial albinism in the meadowlark but
I have discovered no report of a pure albino eastern meadowlark.
Chas. H. Townsend (1883) describes a melanistic specimen
collected in New Jersey as follows: "The upper plumage is of
the normal color, while the whole head, neck and under parts are
perfectly black. There is the faintest possible trace of yellow
along the sides, and no white feathers in the tail, which is very
dark above and below."
Food.--Few birds of the agricultural
areas can claim a higher rank in its economic relations to man
than does the meadowlark. During the summer months most of its
food consists of insects and closely allied forms. It eats
practically all of the principal pests of the fields and is
particularly destructive to the dreaded cutworms, caterpillars,
beetles, and grasshoppers. In the autumn, and especially in
winter, when insect life is scarce, it resorts in a large measure
to seeds. It does feed on certain grains useful to man, such as
corn, wheat, rye, and oats; but most of these are waste left
behind at harvesttime. It seldom disturbs these cereals when
growing or before being harvested. I have seen flocks of them in
weedy cornfields where apparently they were feeding exclusively on
seeds of smartweeds and ragweeds. Meadowlarks have been known to
eat certain fruits such as wild cherries, very small part of their
subsistence.
An account of the food habits of the meadowlark among the sand
hills of North Carolina in winter is given by M. P. Skinner
(1928):
During the winter the number of Meadowlarks remained quite
constant, although there were temporary variations each day. But
in February it became noticeable that some of the winter birds
were leaving. They seem to stand the cold weather, but snows cover
their usual food and then these birds may be found in very unusual
places, on any little patch of bare ground they can find, and
about barns and stockyards.
During the winter in the Sandhills the Meadowlarks depend
largely on seeds and waste oats for food, but also catch
caterpillars, cutworms, earthworms, and as many kinds of insects
as they can. These foods are secured on the ground and in the
short stubble and grasses. At times these birds seem to give
preference to seeds and at other times to feed almost entirely on
insects even during the depth of winter when insects might be
supposed to be scarce. For securing the two different kinds of
food, the Meadowlarks use quite different methods. When after
seeds they hunt through the grass and weeds, stopping occasionally
to gather seeds from the standing or fallen stalks. When they find
places where the seeds are numerous on the ground, they both
scratch with their feet and dig with their bills. If there is a
wind blowing, they usually fly to the lee side of the field and
then advance on foot across it and against the wind. This is apt
to scatter the flock especially as one individual often has better
luck than another, and the unsuccessful ones usually hunt up new
places for themselves rather than share the first ones' success.
Even when scattered over a large field the flock retains its
organization, and when one bird leaves, the others usually follow
one by one at short intervals until all have left. When they are
feeding on insects the Meadowlarks move more rapidly, and perhaps
separate more. Then, they do not search the ground or dig with
their bills, but they look very closely at the bases of the
bunches of grass as they pass by. At times they appear to find
insect-catching very profitable at the stockyards and near barns.
Occasionally a Meadowlark takes both insects and seeds
indiscriminately. Such a bird came walking through the rough at
the edge of a golf links; like a Flicker, it thrust its bill into
the soil experimentally every step or two. At the foot of a tuft
of grass it dug out two white grubs and ate them, then it walked
over to a spray of dried everlasting, pulled it down and ate
several seeds while holding the stalk down under one foot.
In Florida and sections of southern United States more of the
food during the winter months consists of insects, chiefly beetles
but also cutworms, caterpillars, and grasshoppers. Howell (1924)
has found the meadowlark to be an important enemy of the
cotton-boll weevil in the south. Since it feeds regularly upon
this insect during the winter months, it very materially reduces
the number which might otherwise descend on the cotton crop the
following season.
Investigations in South Carolina and other southern states as
far west as Texas, according to Beal, McAtee, and Kalmbach (1927),
have substantiated accusations that the meadowlark is guilty of
destroying sprouting corn.
This habit seems to be confined to the migrating or
wintering flocks before they have broken up for the breeding
season and is probably occasioned by a scarcity of other available
food. North Carolina seems to be the most northerly state in which
this objectionable trait of the meadowlark manifests itself. Corn
planted in March is most susceptible to attack and cases may be
frequently encountered where whole fields must be replanted,
resulting in a delayed and less profitable crop. In attacking the
sprouts the birds usually drill a small conical hole down to the
germinated kernel which they eat, leaving the tender sprout
exposed to the withering effect of sun and air.
F. E. L. Beal (1926), in a report of a detailed analysis of the
contents of 1,514 stomachs of meadowlarks, found that 74 percent
consisted of animal food and 26 percent of vegetable matter. The
animal food consisted of practically all insects, chiefly
"ground" species such as beetles, bugs, grasshoppers,
and caterpillars, with a few flies, wasps, and spiders. Of the
various insects eaten, crickets and grasshoppers are the most
important, constituting 26 percent of the food of the year and 72
percent of the food in August. Of the 1,514 stomachs collected at
all seasons of the year, 778, or more than half, contained remains
of grasshoppers, and one was filled with fragments of 37 of these
insects. Next to grasshoppers, beetles are the most important food
item of the meadowlark, food amounting to about 25 percent.
Forty-two adult May beetles and numerous white grubs of this
beetle, a most destructive insect, notably to grasses and grain,
were found. Among the weevils the cotton-boll and alfalfa weevil
were the most important economically. Caterpillars, including many
cutworms, form a constant element of the food and in May
constitute over 24 percent of the entire food. Adult moths and
butterflies are seldom eaten. The remainder of the insect food is
made up of ants, wasps, and spiders, with some bugs, including
chinch bugs, and a few scales.
The vegetable food, according to Beal (1926), consists of grain
and weed and other hard seeds. Grain was found chiefly in stomachs
collected in winter and early spring; hence it represented waste
material. Clover seed was found in only six stomachs and but
little in each. Seeds of ragweed, barnyard grass, and smartweed
are eaten from November to April, inclusive, but during the rest
of the year are replaced by insects.
As for the food and behavior of meadowlark young, G. B.
Saunders says that within an hour after the meadowlark is hatched
it receives its first meal of cutworms, other small insects, and
spiders. Young grasshopper nymphs which the female has mashed
between her mandibles may be included in these early meals. When
the adult arrives at the nest, insects can be seen projecting from
her bill, and these she feeds to the young by squatting on her
tarsi in front of the entrance and putting morsels well down the
throat of each youngster. When the young are satisfied she resumes
her brooding. During brooding, a nestling may get hungry, in which
case the female raises her breast and reaching down into the
nestling's open mouth, gives it either some insects which were
left over, or a meal of regurgitated food. That she regurgitates
is clearly shown by the pumping action of her neck and head.
During the first few days there is no pronounced change in the
routine of the female, for she continues to spend long hours in
the nest brooding the nearly naked young.
When the young later become stronger, hardier, and somewhat
insulated by feathers, the female spends much less time at the
nest and feeds the young no regurgitated food. By the time the
young are about 6 days old they are receiving the usual fare of
grasshoppers and larvae, plus ground beetles, crickets, and other
heavily chitinized insects. During later nest life their hunger
must be appeased about every 5 to 10 minutes early and late in the
day, and at intervals of about every 15 minutes during the hotter
hours. Most of these trips are made by the female, whereas the
male makes few visits and is much less solicitous in his
attentions to the young. The female averages nearly a hundred
trips a day to the nest during the 12 days the young are in the
nest. The food daily given each nestling weighs 8 to 20 grams, a
weight equivalent to that of about 100 to 300 small grasshopper
nymphs. Saunders estimates, on the basis of various methods of
determination, that a 10-days' supply for 10 nestlings, when the
chief food is grasshoppers, would be 5,000 to 7,000 grasshoppers.
These figures again emphasize the great economic importance of the
meadowlark.
Voice.--The plaintive and very
pleasing whistled notes of the meadowlark, heard on its arrival,
stand out among my most delightful memories of early spring on an
Illinois farm. There, where a tall Osage orange tree stood at the
edge of a rolling meadow, a meadowlark came each year to announce
his arrival. This song may be rendered by the words Ah-tick-seel-yah
or Heetar-see-e-oo, but others have translated it variously
such as Spring-o'-the-yeear; Peek-you can't see me; Toodle-te,
to-on, etc. There is an infinite number of variations of the
territory song, but all have much the same quality. This song is
not only the first heard from the meadowlark in spring, but is the
one repeated from the singing posts throughout the season.
The meadowlark is known to alternate the versions of its song.
Frances H. Allen (1922) writes of a bird he observed on an April
morning:
He had four or more songs in his repertoire. The first,
which was repeated a number of times in succession, resembled the
opening notes of the white-crowned sparrow's song, but had three
high notes on the same, pitch, instead of two, before the lower
one: 'ee-ee-ee-hew.' It was a beautiful song and so different from
anything we commonly hear from the meadowlark that I did not
suspect its author at first. . . . then the bird began to
alternate this song with another which seemed a good musical
complement to it. This second song began low and ended high. It
was something like 'hew-hew-he-hee,' the third note shorter than
the others. After a few alternations of these two songs the bird
dropped the first and sang only the second a number of times, but
dropped that in turn and finally took up two or three simpler and
more normal songs, of which one, at least, was sweeter than most
meadowlark songs.
The peak of singing activity, when the most beautiful songs may
be heard, occurs during the first part of the breeding season,
prior to incubation. During incubation there is a distinct lull in
singing which lasts until the return of sexual activities in
preparation for the second brood. Another lull occurs during the
rearing of the second brood and lasts until fall, when singing is
again renewed. In sections of the country where the meadowlark is
represented by individuals during all seasons, its characteristic
territory song may be heard throughout the year, even during the
winter months.
The versatile meadowlark has also a flight song, a truly
ecstatic performance. Prefacing the flight song with a few notes
from a perch, it flies swiftly upward, sometimes spirally into the
air. It vibrates its wings rapidly and utters penetrating and
chattering notes in rapid concert not unlike that of the bobolink.
After flying more or less in a circle, it slowly descends to the
ground. This song too is variable but is very different and not at
all suggestive of the ordinary song.
The songs of the eastern and western meadowlark have frequently
been compared. Albert Brand (1938) who has made a study of
vibration frequencies of passerine bird song, found that for the
eastern meadowlark the highest note had 6,025, the lowest 3,150,
and the approximate mean 4,400 vibrations per second. Those of the
western meadowlark are much lower in pitch--3,475 for the highest,
1,475 for the lowest, and 3,475 for the approximate mean.
When the meadowlark is alarmed or excited it nervously flits
and twitches its tail, exposing the white tail feathers. This
behavior is accompanied by a sharp nasal call note, which changes
to a rolling chatter followed by a plaintive but pleasing whistle.
G. B. Saunders describes the call notes of the meadowlark in
detail, as follows:
The day-old nestling first voices his calls for food with a
faint 'tseep, tssep, seep, seep' or 'tsp, tsp.' As he gains
strength this utternace is a lisping 'sweet, sweet, sweet.' By the
seventh or eighth day the note becomes a bysyllabic 'tscheep,
tscheep,' 'tscheep' or 'tschip', tschip'.' All of these notes are
of the same general type. When out of the nest, the juvenile's
call is a loud peeping 'tseup', tseup' ' or 'sweet, sweet,'
similar to the 'weet, weet' notes of the adults.
The adult call notes may be expressed phonetically as 'weet,
weet, weet.' Those of the female are usually softer and more
modulated than those of the male. There is an infinite variation
in the expression of these notes. Other conversational calls of
the adults are the low pitched and modified alarm notes, 'dzert,
dzert' and the 'tet-tet-tet-tet' notes of the chatter. The female
often joins them, i. e., 'dzert, tet-tet-tet-tet-tet-tet' in
answering the male's song.
The common alarm chatter, 'dzert-tet-tet-tet-tet,' seems to
be a modification of the call notes just mentioned. The speeding
up due to excitement gives the notes a much harsher quality. The
notes 'dzert-dzert' are usually given when a preliminary alarm is
uttered. Another note fairly common during the breeding season,
but one not heard except at that time, is the queer 'beert' or
"nighthawk" note. It may be given as an alarm when the
birds are greatly excited, or it may be given during sexual
displays and competitions. It is uttered by both sexes.
Aretas A. Saunders has written a very excellent analysis of the
song and notes of the meadowlark: "The song of the Eastern
meadowlark is a short series of sweet, clear, very high pitched
whistled notes. It is loud, carries a long distance, and, when one
is near the bird, is rather shrill. The notes are few, compared to
those of other birds, and downward slurs from a high to a lower
note are frequent. In spite of the few notes, it is exceedingly
variable.
"In pitch and time the song is remarkably like human
music. The notes are usually on the same eight notes of the octave
as in the simpler kinds of human music. The shorter notes are
commonly half or a third the length of the longer notes, so that
the songs could be recorded on the musical scale, as human music
is written, with considerable accuracy. The different songs are
easily and quickly recorded by the graphic method. My earliest
experiments in recording bird songs were with the meadowlark, and
although many of the records have proved to be duplicates, I have
at the present time more than a thousand different songs of this
species on record. The following data are based on a study of 962
of these records that I have filed and catalogued, the remaining
records being still only in my field note books.
"These records show that the songs vary from 2 to 8 notes
each, the great majority 3 to 6 notes. There are 4 songs of 2
notes; 65 of 3 notes; 352 of 4 notes; 391 of 5 notes; 132 of 6
notes; 15 of 7 notes and 3 of 8 notes. In spite of the great
variation, many records prove to be duplicates, and it is a common
experience to hear two or three birds singing the same song, one
after the other, and also common to record songs from widely
separated localities that are exact duplicates. While the majority
of my records are from southwestern Connecticut, I have a good
many from various localities in New York, and scattering records
from other states. Songs that are common in Connecticut are often
equally common in southwestern New York, approximately 400 miles
distant. I have also recorded duplicates of Connecticut songs from
the vicinity of Dover, Del .
"The pitch of songs varies from C''' to D#'''', a range of
l 1/2 tones more than an octave, the highest notes being a little
higher than the highest on the piano. The range of individual
songs varies from 1 tone to an octave; 12 songs have a range of
only 1 tone, and only one has a range of an octave. Nearly half of
the records, 446, have a range of 2 1/2 tones, and the average of
pitch of all of them is 2.7 tones.
"The duration of meadowlark songs varies from about 2/5
second to nearly 3 seconds, averaging about 1 4/5 seconds. It is
difficult to measure short songs accurately with a stopwatch. The
time factor of greater interest is the perfect rhythm of the notes
and the great number of variations in time arrangement that, with
the variations in pitch, go to make the great number of different
songs that this species possesses.
"Not only does the meadowlark, as a species, sing a great
variety of songs, but each individual has many variations. I once
recorded 53 different songs from one individual in less than an
hour, and recorded altogether 96 different songs of birds singing
in that location in that season.
"Consonant sounds are not prominent in meadowlark songs.
In some songs notes are linked together with a liquid consonant
sound, like the letter 1 that occurs in about 10 percent of
the songs I have recorded. Another consonant sound, which occurs
at the beginning of certain notes, most commonly at the beginning
of downward slurs, is sibilant and sornds like the letters ts,
making a slur sound like 'tseeyah', or something similar.
The sound is rather faint however. I have recorded it in less than
5 percent of the songs, but it may be commoner than this
indicates, for it is not easily audible from more distant singers.
"In early spring, usually late March and early April, the
meadowlark frequently sings two different songs in alternation,
usually with a pause of about one second between them. I have
eight records of these alternated songs, all different. In most of
them one song ends on a high-pitched note and the other on a low
pitch, so that they sound something like a question and an answer,
and form a pleasing musical combination. All my records but one,
recorded at Cross Lake, N. Y., in July, are dated between March 7
and April 11.
"In addition to this form of song, the meadowlark has a
flight song, very different in character, that is rather rarely
heard. In a good many years I have not heard it at all, whereas in
others I have heard it several times, most commonly in late April.
The performance begins from a perch, the bird calling at intervals
on a rather harsh, nasal, downward slurred note. After several of
these notes the bird rises into the air and flies across the
meadow singing a song made up of groups of 4 or 5 notes, separated
by short pauses. These notes are fricative and not especially
musical, nor are they so loud as the common song. Such a song
takes 10 to 12 seconds from the beginning notes on the perch until
the bird is silent .
"I have heard songs of the meadowlark in every month of
the year. The regular period of singing, however, begins in March
and lasts until late August. Songs in January are rare, and in 32
years of records I have heard the song in that month only 4 times.
In February there is often quite a bit of singing, and in 16 of
these years the first song of the year was heard in February, the
average date of the first song being February 19. Regular singing,
however, does not begin until March, and in 6 years it did not
begin until April. The average date of its beginning is March 26.
"I have less full data on the cessation of song, as I have
frequently been in places where I could not hear it at the proper
season. Five years in Cattaraugus County, N. Y., give an average
of August 11 for the last song, whereas 5 years in Connecticut
average August 18.
"The song is revived in September or October, and is to be
heard quite frequently through the fall until November. In
Connecticut 20 years of observations give an average of September
30 for the beginning and November 13 for the end of the fall
singing, but such singing is much more erratic than spring
singing. Songs in December are rare, though more frequent than in
January."
Enemies.--In most sections of its
range the eastern meadowlark is not commonly imposed upon by the
cowbird. I have never found a nest in New England that contained
an egg of the cowbird, and G. B. Saunders states that of over 50
nests studied in Oklahoma and New York, none contained other than
meadowlark eggs. However, during the course of a statistical
survey of the birds of Illinois in 1906 - 1908 I found four cases
of cowbird parasitism: One nest in northern Illinois near Rockford
contained three eggs of the meadowlark and one cowbird's egg; of
two nests in Champaign County, central Illinois, one contained two
meadowlark and three cowbird eggs and the other, three meadowlark
and two cowbird eggs, with a broken meadowlark's egg outside of
the nest; and a nest near Benton, Franklin County, in southern
Illinois, contained two eggs of the meadowlark and two young, one
of which, judging from its size and appearance, was a freshly
hatched cowbird.
G. Eifrig (1915, 1919) writing on the birds of the Chicago area
states that he has repeatedly found nests of the meadowlark with
one or more eggs of the cowbird. He also states that one or more
or all the eggs of the rightful owner were apparently rolled out.
It would seem that the meadowlark is a common victim of the
cowbird in the State of Illinois. Milton B. Trautman (1940) found
two nests of the meadowlark containing cowbirds eggs at Buckeye
Lake, Ohio. Bendire (1895) reports an instance where a second nest
was built over one containing the parasitic egg. This is a common
habit of certain birds such as the warblers but presumably it is
rare in the case of the meadowlark. Herbert Friedmann (1929) has
obtained records of cowbird parasitism of the eastern meadowlark
from New England, New York, Pennsylvania, Michigan, Illinois, and
Iowa, but states that the meadowlark is not a common host.
It is of passing interest to note that eggs of the bob-white
quail and bobolink have been found in the nests of meadowlarks,
although these instances are not to be classed as parasitism but
merely unusual accidents. J. B. Lackey (1913) reports finding eggs
of the bob-white in two meadowlark's nests near Clinton, Miss.,
and Edward R. Ford of Chicago found a meadowlark's nest with four
eggs of the meadowlark, one of the cowbird, and one egg of the
bobolink .
G. B. Saunders in an examination of 45 adult meadowlarks found
8 contained internal parasites. The tapeworm Anonchotaenia
sp. was found in 3 and the parasite Mediorhynchus grandis
in 6 birds. The roundworm Diplotriaenoides sp. was found in
both Oklahoma and New York birds. Of 5 young in a nest at Ithaca,
N.Y., 3 were found to have dipterous larvae, probably of the genus
Chrysomyia, in their nasal passages. The meadowlark like
most other birds is host to a number of external parasites
including lice, ticks, and mites, among which Harold S. Peters
(1936) has found the three lice Degeeriella picturata
(Osborn), Menacanthus chrysophaeum (Kellogg) and Philopterus
subftavescens (Geof.), the three ticks Haemaphysalis
leporis-palustris Packard, Ixodes sp., and Amblyomma
tuberculatum Marx; and the mite Trombicula hominis
Ewing. Occasionally nests of the meadowlark are heavily infested
with mites, and G. B. Saunders cites one case where a nest was
deserted because of an unusually heavy infestation.
Because the eastern meadowlark has two broods of four or five
young during each season, we need not be alarmed at the large
number of enemies and of its great mortality. Man, directly or
indirectly, is responsible for the loss of a great many
meadowlarks and probably he is the most important factor in the
control of the species and thus preventing overpopulation. Perhaps
the most disastrous but unwitting acts of man is the mowing of
alfalfa, clover, and timothy fields in which the meadowlarks nest.
In Illinois, while traversing the various sections of the state on
foot for hundreds of miles in connection with the statistical bird
survey in 1906 - 1908, the loss I noted from this source was
appalling. In June and July I saw nest after nest that had been
destroyed by mowing machines and it is probably safe to state that
more meadowlarks are destroyed by this means, which is repeated
year after year, than by any other.
In autumn, when meadowlarks congregated in large flocks in
southern Illinois, it was a common experience to see groups of a
dozen or more gunners out killing meadowlarks in large numbers, to
be carried home for food for themselves and their neighbors. Such
practices have been common in some of the southern states in the
past, but I am convinced that in recent years there has been less
of this kind of destruction because of the more rigid enforcement
of protective laws and the general education of the public to the
economic value of this bird.
Automobiles, which constitute a menace to certain of our birds,
are not such a menace to the meadowlark; however, when the birds
frequent dirt roads in autumn to dust their plumage and possibly
to pick up stray bits of food, such as grasshoppers, a
considerable number have been reported killed.
Since the meadowlark nests on the ground, predatory mammals and
birds and probably snakes are responsible for a number of deaths.
The domestic cat ranks high as a destroyer of meadowlarks,
especially those that nest in fields adjacent to farm homes. Farm
dogs, which also roam the fields and which are able to locate the
nesting birds through the sense of smell, probably destroy a
number of nests. Saunders states that he has seen Bonaparte's
weasel attack juvenile meadowlarks.
The examination of the stomach contents of owls and hawks has
revealed that the horned and snowy owls, the goshawk, duck hawk,
sparrow hawk, red-tailed hawk, red-shouldered hawk, and Cooper's
hawk have taken meadowlarks, chiefly during the winter months.
Since the meadowlark is one of the earliest spring migrants,
snowstorms frequently cut off its food supply and, the
accompanying cold, cause the death of many of the birds. Frederick
C. Lincoln (1939) states that during the early part of June 1927 a
hailstorm of exceptional violence in and around Denver, Col.,
killed a large number of meadowlarks and other birds. The ground
was strewn with dead birds and many lay dead in their nests where
they were incubating eggs or brooding young when the storm broke.
Fall and Winter.--In
fall the meadowlarks leave their nesting grounds in Quebec and
Ontario during September and October, and by the middle of October
the bulk of them have departed. A few individuals may linger on
until well into November. Since the meadowlark normally winters in
northern United States, the time of departure of migrants is
difficult to ascertain.
In southern Illinois during the month of October I have seen
immense flocks made up of hundreds of individuals concentrated in
the lowlands above Cairo, at the junction of the Mississippi and
Ohio Rivers. These flocks were made up largely of birds that had
migrated from points farther north. Also, in going through
cornfields and stubblelands of this part of the state, I
frequently saw smaller companies of them waddling about the
clustered stalks. As they paused to inspect me they would hold
their bodies in a vertical position with their bills pointed
skyward. At the same time they would flick their tails displaying
the conspicuous white markings as they opened and closed the fan
of feathers .
On the New Jersey coast the meadowlarks start flocking about
the middle of August, when it is common to see parties of 20 to 25
individuals. In October the birds band together in large flocks of
200 to 300. Many of these birds pass on farther south, but flocks
of 50 to 75 are to be seen throughout the winter. They become much
tamer in winter, especially when food is scarce and it is then
that they frequent the habitations of man and even enter the
towns, where they may be seen in vacant lots feeding in company
with English sparrows and starlings. They have also been reported
as seen feeding on garbage in alley ways during times of severe
blizzards. During the winter months meadowlarks have been flushed
from the tall grass of marshes, where the great accumulation of
droppings indicated that they had roosted during the night.
Meadowlarks have also been known to accompany grackles to their
roosts in trees, but this is not common practice.
In recent years meadowlarks have been wintering in increasing
numbers in the salt marshes of southeastern Maine in the region of
Scarboro, Pine Point, and southward. During October and November
as many as 100 to 200 meadowlarks may be started from a single
marsh. These birds are probably individuals which had nested in
the interior of the state and concentrated on the coast in the
autumn .
Fred S. Walker (1910) reports that he has seen meadowlarks at
Pine Point throughout the winter. A flock of 30 to 40 were
frequently seen in the adjacent marshes.
In very cold weather, when the grasses and weeds of the
marsh were buried beneath the snow, they would venture up to the
railway station and pick up grain which had fallen from freight
cars. . . . In February, when the marsh was deeply covered with
snow, I frequently walked out near the river, scraped off snow
from small patches of grass and fed the larks with grain--cracked
corn, oats, and barley. They evidently relished this, for it was
eagerly devoured. On warm days in January and February they often
alighted on the telegraph wires and sang.
In South Carolina the meadowlarks arrive in large numbers in
October to take up their winter residence in stubble, corn and
cotton fields, and in old fields grown up in weeds and brown
sedge. These birds, like those that winter along the Maine and New
Jersey coasts, spend the nights in the salt marshes. In various
parts of the state they swarm about the rice plantations, where
they are often killed by hunters who know the meadowlark as the
"marsh quail."
At Buckeye Lake, Ohio, M. B. Trautman (1940) writes of
wintering meadowlarks as follows: "In an average winter 10 to
30 birds could be found during a day's field trip, but when the
species was most numerous as many as 210 were seen in a day. The
wintering birds were found in fields and meadows whenever these
were largely free of snow. When there was deep snow the birds
congregated about manure piles, straw stacks, and in barnyards and
adjacent fields where stock was fed."
Eastern Meadowlark*
Sturnella magna
Contributed by Alfred Otto
Gross
*Original Source: Bent,
Arthur Cleveland. 1958. Smithsonian Institution United
States National Museum Bulletin 211: 53-80. United States
Government Printing Office
Return
to FAMILIAR BIRDS Home Page
Return to
beginning of document
|