Years ago, when quite a youth, I was
rambling in the woods one Sunday, with my brothers,
gathering black birch, wintergreens, etc.,
when, as we reclined upon the ground, gazing vaguely
up into the trees, I caught sight of a bird, that
paused a moment on a branch above me, the like of
which I had never before seen or heard of. It
was probably the blue yellow-backed warbler, as I
have since found this to be a common bird in those
woods; but to my young fancy it seemed like some fairy
bird, so unexpected. I saw it a moment as the
flickering leaves parted, noted the white spot on
its wing, and it was gone. How the thought of
it clung to me afterward! It was a revelation.
It was the first intimation I had had that the woods
we knew so well held birds that we knew not at all.
Were our eyes and ears so dull, then? There was
the robin, the blue jay, the bluebird, the yellow-bird,
the cherry-bird, the catbird, the chipping-bird, the
woodpecker, the high-hole, an occasional redbird,
and a few others, in the woods or along their borders,
but who ever dreamed that there were still others
that not even the hunters saw, and whose names no one
had ever heard?
When, one summer day, later in life,
I took my gun and went to the woods again, in a different
though perhaps a less simple spirit I found my youthful
vision more than realized. There were, indeed,
other birds, plenty of them, singing, nesting, breeding,
among the familiar trees, which I had before passed
by unheard and unseen.
It is a surprise that awaits every
student of ornithology, and the thrill of delight
that accompanies it, and the feeling of fresh, eager
inquiry that follows, can hardly be awakened by any
other pursuit. Take the first step in ornithology,
procure one new specimen, and you are ticketed for
the whole voyage. There is a fascination about
it quite overpowering. It fits so well with other
things, with fishing, hunting, farming,
walking, camping-out, with all that takes
one to the fields and woods. One may go a-blackberrying
and make some rare discovery; or, while driving his
cow to pasture, hear a new song, or make a new observation.
Secrets lurk on all sides. There is news in every
bush. Expectation is ever on tiptoe. What
no man ever saw before may the next moment be revealed
to you. What a new interest the woods have!
How you long to explore every nook and corner of them!
You would even find consolation in being lost in them.
You could then hear the night birds and the owls,
and, in your wanderings, might stumble upon some unknown
specimen.
In all excursions to the woods or
to the shore, the student of ornithology has an advantage
over his companions. He has one more resource,
one more avenue of delight. He, indeed, kills
two birds with one stone and sometimes three.
If others wander, he can never go out of his way.
His game is everywhere. The cawing of a crow makes
him feel at home, while a new note or a new song drowns
all care. Audubon, on the desolate coast of Labrador,
is happier than any king ever was; and on shipboard
is nearly cured of his seasickness when a new gull
appears in sight.
One must taste it to understand or
appreciate its fascination. The looker-on sees
nothing to inspire such enthusiasm. Only a few
feathers and a half-musical note or two; why all this
ado? “Who would give a hundred and twenty
dollars to know about the birds?” said an Eastern
governor, half contemptuously, to Wilson, as the latter
solicited a subscription to his great work. Sure
enough. Bought knowledge is dear at any price.
The most precious things have no commercial value.
It is not, your Excellency, mere technical knowledge
of the birds that you are asked to purchase, but a
new interest in the fields and the woods, a new moral
and intellectual tonic, a new key to the treasure-house
of Nature. Think of the many other things your
Excellency would get, the air, the sunshine,
the healing fragrance and coolness, and the many respites
from the knavery and turmoil of political life.
Yesterday was an October day of rare
brightness and warmth. I spent the most of it
in a wild, wooded gorge of Rock Creek. A persimmon-tree
which stood upon the bank had dropped some of its fruit
in the water. As I stood there, half-leg deep,
picking them up, a wood duck came flying down the
creek and passed over my head. Presently it returned,
flying up; then it came back again, and, sweeping low
around a bend, prepared to alight in a still, dark
reach in the creek which was hidden from my view.
As I passed that way about half an hour afterward,
the duck started up, uttering its wild alarm note.
In the stillness I could hear the whistle of its wings
and the splash of the water when it took flight.
Near by I saw where a raccoon had come down to the
water for fresh clams, leaving his long, sharp track
in the mud and sand. Before I had passed this
hidden stretch of water, a pair of those mysterious
thrushes, the gray-cheeked, flew up from the ground
and perched on a low branch.
Who can tell how much this duck, this
footprint in the sand, and these strange thrushes
from the far north, enhanced the interest and charm
of the autumn woods?
Ornithology cannot be satisfactorily
learned from the books. The satisfaction is
in learning it from nature. One must have an original
experience with the birds. The books are only
the guide, the invitation. Though there remain
not another new species to describe, any young person
with health and enthusiasm has open to him or her the
whole field anew, and is eligible to experience all
the thrill and delight of the original discoverers.
But let me say, in the same breath,
that the books can by no manner of means be dispensed
with. A copy of Wilson or Audubon, for reference
and to compare notes with, is invaluable. In lieu
of these, access to some large museum or collection
would be a great help. In the beginning, one
finds it very difficult to identify a bird from any
verbal description. Reference to a colored plate,
or to a stuffed specimen, at once settles the matter.
This is the chief value of books; they are the charts
to sail by; the route is mapped out, and much time
and labor are thereby saved. First find your bird;
observe its ways, its song, its calls, its flight,
its haunts; then shoot it (not ogle it with a glass),
and compare it with Audubon. In this way the feathered kingdom may soon
be conquered.
The ornithologists divide and subdivide
the birds into a great many orders, families, genera,
species etc., which, at first sight, are apt
to confuse and discourage the reader. But any
interested person can acquaint himself with most of
our song-birds by keeping in mind a few general divisions,
and observing the characteristics of each. By
far the greater number of our land-birds are either
warblers, vireos, flycatchers, thrushes, or finches.
The warblers are, perhaps, the most
puzzling. These are the true Sylvia, the real
wood-birds. They are small, very active, but feeble
songsters, and, to be seen, must be sought for.
In passing through the woods, most persons have a
vague consciousness of slight chirping, semi-musical
sounds in the trees overhead. In most cases these
sounds proceed from the warblers. Throughout
the Middle and Eastern States, half a dozen species
or so may be found in almost every locality, as the
redstart, the Maryland yellow-throat, the yellow warbler
(not the common goldfinch, with black cap, and black
wings and tail), the hooded warbler, the black and
white creeping warbler; or others, according to the
locality and the character of the woods. In pine
or hemlock woods, one species may predominate; in
maple or oak woods, or in mountainous districts, another.
The subdivisions of ground warblers, the most common
members of which are the Maryland yellow-throat, the
Kentucky warbler, and the mourning ground warbler,
are usually found in low, wet, bushy, or half-open
woods, often on and always near the ground. The
summer yellowbird, or yellow warbler, is not now a
wood-bird at all, being found in orchards and parks,
and along streams and in the trees of villages and
cities.
As we go north the number of warblers
increases, till, in the northern part of New England,
and in the Cañadas, as many as ten or twelve
varieties may be found breeding in June. Audubon
found the black-poll warbler breeding in Labrador,
and congratulates himself on being the first white
man who had ever seen its nest. When these warblers
pass north in May, they seem to go singly or in pairs,
and their black caps and striped coats show conspicuously.
When they return in September they are in troops or
loose flocks, are of a uniform dull drab or brindlish
color, and are very fat. They scour the treetops
for a few days, almost eluding the eye by their quick
movements, and are gone.
According to my own observation, the
number of species of warblers which one living in
the middle districts sees, on their return in the
fall, is very small compared with the number he may
observe migrating north in the spring.
The yellow-rumped warblers are the
most noticeable of all in Autumn. They come about
the streets and garden, and seem especially drawn to
dry, leafless trees. They dart spitefully about,
uttering a sharp chirp. In Washington I have
seen them in the outskirts all winter.
Audubon figures and describes over
forty different warblers. More recent writers
have divided and subdivided the group very much, giving
new names to new classifications. But this part
is of interest and value only to the professional
ornithologist.
The finest songster among the Sylvia,
according to my notions, is the black-throated greenback.
Its song is sweet and clear, but brief.
The rarest of the species are Swainson’s
warbler, said to be disappearing; the cerulean warbler,
said to be abundant about Niagara; and the mourning
ground warbler, which I have found breeding about the
head-waters of the Delaware, in New York.
The vireos, or greenlets, are a sort
of connecting link between the warblers and the true
flycatchers, and partake of the characteristics of
both.
The red-eyed vireo, whose sweet soliloquy
is one of the most constant and cheerful sounds in
our woods and groves, is perhaps the most noticeable
and abundant species. The vireos are a little
larger than the warblers, and are far less brilliant
and variegated in color.
There are five species found in most
of our woods, namely the red-eyed vireo, the white-eyed
vireo, the warbling vireo, the yellow-throated vireo,
and the solitary vireo, the red-eyed and
warbling being most abundant, and the white-eyed being
the most lively and animated songster. I meet
the latter bird only in the thick, bush growths of
low, swampy localities, where, eluding the observer,
it pours forth its song with a sharpness and a rapidity
of articulation that are truly astonishing. This
strain is very marked, and, though inlaid with the
notes of several other birds, is entirely unique.
The iris of this bird is white, as that of the red-eyed
is red, though in neither case can this mark be distinguished
at more than two or three yards. In most cases
the iris of birds is a dark hazel, which passes for
black.
The basket-like nest, pendent to the
low branches in the woods, which the falling leaves
of autumn reveal to all passers, is, in most cases,
the nest of the red-eyed, though the solitary constructs
a similar tenement, but in much more remote and secluded
localities.
Most birds exhibit great alarm and
distress, usually with a strong dash of anger, when
you approach their nests; but the demeanor of the
red-eyed, on such an occasion, is an exception to this
rule. The parent birds move about softly amid
the branches above, eying the intruder with a curious,
innocent look, uttering, now and then, a subdued note
or plaint, solicitous and watchful, but making no
demonstration of anger or distress.
The birds, no more than the animals,
like to be caught napping; but I remember, one autumn
day, coming upon a red-eyed vireo that was clearly
oblivious to all that was passing around it. It
was a young bird, though full grown, and it was taking
its siesta on a low branch in a remote heathery field.
Its head was snugly stowed away under its wing, and
it would have fallen easy prey to the first hawk that
came along. I approached noiselessly, and when
within a few feet of it paused to note its breathings,
so much more rapid and full than our own. A bird
has greater lung capacity than any other living thing,
hence more animal heat, and life at a higher pressure.
When I reached out my hand and carefully closed it
around the winged sleeper, its sudden terror and consternation
almost paralyzed it. Then it struggled and cried
piteously, and when released hastened and hid itself
in some near bushes. I never expected to surprise
it thus a second time.
The flycatchers are a larger group
than the vireos, with stronger-marked characteristics.
They are not properly songsters, but are classed by
some writers as screechers. Their pugnacious
dispositions are well known, and they not only fight
among themselves, but are incessantly quarreling with
their neighbors. The kingbird, or tyrant flycatcher
might serve as the type of the order.
The common or wood pewee excites the
most pleasant emotions, both on account of its plaintive
note and its exquisite mossy nest.
The phoebe-bird is the pioneer of
the flycatchers, and comes in April, sometimes in
March. Its comes familiarly about the house and
outbuildings, and usually builds beneath hay-sheds
or under bridges.
The flycatchers always take their
insect prey on the wing, by a sudden darting or swooping
movement; often a very audible snap of the beak may
be heard.
These birds are the least elegant,
both in form and color, of any of our feathered neighbors.
They have short legs, a short neck, large heads, and
broad, flat beaks, with bristles at the base.
They often fly with a peculiar quivering movement
of the wings, and when at rest some of the species
oscillate their tails at short intervals.
There are found in the United States
nineteen species. In the Middle and Eastern districts,
one may observe in summer, without any special search,
about five of them, namely, the kingbird, the phoebe-bird,
the wood pewee, the great crested flycatcher (distinguished
from all others by the bright ferruginous color of
its tail), and the small green-crested flycatcher.
The thrushes are the birds of real
melody, and will afford one more delight perhaps than
any other class. The robin is the most familiar
example. Their manners, flight, and form are the
same in each species. See the robin hop along
upon the ground, strike an attitude, scratch for a
worm, fix his eye upon something before him or upon
the beholder, flip his wings suspiciously, fly straight
to his perch, or sit at sundown on some high branch
caroling his sweet and honest strain, and you have
seen what is characteristic of all the thrushes.
Their carriage is preeminently marked by grace, and
their songs by melody.
Beside the robin, which is in no sense
a woodbird, we have in New York the wood thrush, the
hermit thrush, the veery, or Wilson’s thrush,
the olive-backed thrush, and, transiently, one or
two other species not so clearly defined.
The wood thrush and the hermit stand
at the head as songsters, no two persons, perhaps,
agreeing as to which is the superior.
Under the general head of finches,
Audubon describes over sixty different birds, ranging
from the sparrows to the grosbeaks, and including
the buntings, the linnets, the snowbirds, the crossbills,
and the redbirds.
We have nearly or quite a dozen varieties
of the sparrow in the Atlantic States, but perhaps
no more than half that number would be discriminated
by the unprofessional observer. The song sparrow,
which every child knows, comes first; at least, his
voice is first heard. And can there be anything
more fresh and pleasing than this first simple strain
heard from the garden fence or a near hedge, on some
bright, still March morning?
The field or vesper sparrow, called
also grass finch 8 and bay-winged sparrow,
a bird slightly larger than the song sparrow and of
a lighter gray color, is abundant in all our upland
fields and pastures, and is a very sweet songster.
It builds upon the ground, without the slightest cover
or protection, and also roosts there. Walking
through the fields at dusk, I frequently start them
up almost beneath my feet. When disturbed by
day, they fly with a quick, sharp movement, showing
two white quills in the tail. The traveler along
the country roads disturbs them earthing their wings
in the soft dry earth, or sees them skulking and flitting
along the fences in front of him. They run in
the furrow in advance of the team, or perch upon the
stones a few rods off. They sing much after sundown,
hence the aptness of the name vesper sparrow, which
a recent writer, Wilson Flagg, has bestowed upon them.
In the meadows and low, wet lands
the savanna sparrow is met with, and may be known
by its fine, insect-like song; in the swamp, the swamp
sparrow.
The fox sparrow, the largest and handsomest
species of this family, comes to us in the fall, from
the North, where it breeds. Likewise the tree
or Canada sparrow, and the white-crowned and white-throated
sparrow.
The social sparrow, alias “hairbird,”
alias “red-headed chipping-bird,” is the
smallest of the sparrows, and I believe, the only
one that builds in trees.
The finches, as a class, all have
short conical bills, with tails more or less forked.
The purple finch heads the list in varied musical
abilities.
Besides the groups of our more familiar
birds which I have thus hastily outlined, there are
numerous other groups, more limited in specimens but
comprising some of our best-known songsters. The
bobolink, for instance, has properly no congener.
The famous mockingbird of the Southern States belongs
to a genus which has but two other representatives
in the Atlantic States, namely, the catbird and the
long-tailed or ferruginous thrush.
The wrens are a large and interesting
family, and as songsters are noted for vivacity and
volubility. The more common species are the house
wren, the marsh wren, the great Carolina wren, and
the winter wren, the latter perhaps deriving its name
from the fact that it breed in the North. It
is an exquisite songster, and pours forth its notes
so rapidly, and with such sylvan sweetness and cadence,
that it seems to go off like a musical alarm.
Wilson called the kinglets wrens,
but they have little to justify the name, except that
the ruby-crown’s song is of the same gushing,
lyrical character as that referred to above. Dr.
Brewer was entranced with the song of one of these
tiny minstrels in the woods of New Brunswick, and
thought he had found the author of the strain in the
black-poll warbler. He seems loath to believe
that a bird so small as either of the kinglets could
possess such vocal powers. It may indeed have
been the winter wren, but from my own observation I
believe the ruby-crowned kinglet quite capable of
such a performance.
But I must leave this part of the
subject and hasten on. As to works on ornithology,
Audubon’s, though its expense puts it beyond
the reach of the mass of readers, is by far the most
full and accurate. His drawings surpass all others
in accuracy and spirit, while his enthusiasm and devotion
to the work he had undertaken have but few parallels
in the history of science. His chapter on the
wild goose is as good as a poem. One readily
overlooks his style, which is often verbose and affected,
in consideration of enthusiasm so genuine and purpose
so single.
There has never been a keener eye
than Audubon’s, though there have been more
discriminative ears. Nuttall, for instance is
far more happy in his descriptions of the songs and
notes of birds, and more to be relied upon. Audubon
thinks the song of the Louisiana water-thrush equal
to that of the European nightingale, and, as he had
heard both birds, one would think was prepared to
judge. Yet he has, no doubt, overrated the one
and underrated the other. The song of the water-thrush
is very brief, compared with the philomel’s,
and its quality is brightness and vivacity, while
that of the latter bird, if the books are to be credited,
is melody and harmony. Again, he says the song
of the blue grosbeak resembles the bobolink’s,
which it does about as much as the two birds resemble
each other in color; one is black and white and the
other is blue. The song of the wood-wagtail,
he says, consists of a “short succession of simple
notes beginning with emphasis and gradually falling.”
The truth is, they run up the scale instead of down,
beginning low and ending in a shriek.
Yet considering the extent of Audubon’s
work, the wonder is the errors are so few. I
can at this moment recall but one observation of his,
the contrary of which I have proved to be true.
In his account of the bobolink he makes a point of
the fact that, in returning south in the fall, they
do not travel by night as they do when moving north
in the spring. In Washington I have heard their
calls as they flew over at night for four successive
autumns. As he devoted the whole of a long life
to the subject, and figured and described over four
hundred species, one feels a real triumph on finding
in our common woods a bird not described in his work.
I have seen but two. Walking in the woods one
day in early fall, in the vicinity of West Point, I
started up a thrush that was sitting on the ground.
It alighted on a branch a few yards off, and looked
new to me. I thought I had never before seen
so long-legged a thrush. I shot it, and saw that
it was a new acquaintance. Its peculiarities
were its broad, square tail; the length of its legs,
which were three and three quarters inches from the
end of the middle toe to the hip-joint; and the deep
uniform olive-brown of the upper parts, and the gray
of the lower. It proved to be the gray-cheeked
thrush, named and first described by Professor Baird.
But little seems to be known concerning it, except
that it breeds in the far north, even on the shores
of the Arctic Ocean. I would go a good way to
hear its song.
The present season I met with a pair
of them near Washington, as mentioned above.
In size this bird approaches the wood thrush, being
larger than either the hermit or the veery; unlike
all other species, no part of its plumage has a tawny
or yellowish tinge. The other specimen was the
northern or small water-thrush, cousin-german to the
oven-bird and the half-brother to the Louisiana water-thrush
or wagtail. I found it at the head of the Delaware,
where it evidently had a nest. It usually breeds
much further north. It has a strong, clear warble,
which at once suggests the song of its congener.
I have not been able to find any account of this particular
species in the books, though it seems to be well known.
More recent writers and explorers
have added to Audubon’s list over three hundred
new species, the greater number of which belong to
the northern and western parts of the continent.
Audubon’s observations were confined mainly
to the Atlantic and Gulf States and the adjacent islands;
hence the Western or Pacific birds were but little
known to him, and are only briefly mentioned in his
works.
It is, by the way, a little remarkable
how many of the Western birds seem merely duplicates
of the Eastern. Thus, the varied thrush of the
West is our robin, a little differently marked; and
the red-shafted woodpecker is our golden-wing, or
high-hole, colored red instead of yellow. There
is also a Western chickadee, a Western chewink, a
Western blue jay, a Western bluebird, a Western song
sparrow, Western grouse, quail, hen-hawk, etc.
One of the most remarkable birds of
the West seems to be a species of skylark, met with
on the plains of Dakota, which mounts to the height
of three or four hundred feet, and showers down its
ecstatic notes. It is evidently akin to several
of our Eastern species.
A correspondent, writing to me from
the country one September, said: “I have
observed recently a new species of bird here.
They alight upon the buildings and fences as well
as upon the ground. They are walkers.”
In a few days he obtained one and sent me the skin.
It proved to be what I had anticipated, namely the
American pipit, or titlark, a slender brown bird,
about the size of the sparrow, which passes through
the States in the fall and spring, to and from its
breeding haunts in the far north. They generally
appear by twos and threes, or in small loose flocks,
searching for food on banks and plowed ground.
As they fly up, they show two or three white quills
in the tail, like the vesper sparrow. Flying
over, they utter a single chirp or cry every few rods.
They breed in the bleak, moss-covered rocks of Labrador.
It is reported that their eggs have also been found
in Vermont, and I feel quite certain that I saw this
bird in the Adirondack Mountains in the month of August.
The male launches into the air, and gives forth a
brief but melodious song, after the manner of all
larks. They are walkers. This is a characteristic
of but few of our land-birds. By far the greater
number are hoppers. Note the track of the common
snowbird; the feet are not placed one in front of the
other, as in the track of the crow or partridge, but
side and side. The sparrows, thrushes, warblers,
woodpeckers, buntings, etc., are all hoppers.
On the other hand, all aquatic or semi-aquatic birds
are walkers. The plovers and sandpipers and snips
run rapidly. Among the land-birds, the grouse,
pigeons, quails, larks and various blackbirds walk.
The swallows walk, also, whenever they use their feet
at all, but very awkwardly. The larks walk with
ease and grace. Note the meadowlarks strutting
about all day in the meadows.
Besides being walkers, the larks,
or birds allied to the larks, all sing upon the wing,
usually poised or circling in the air, with a hovering,
tremulous flight. The meadowlark occasionally
does this in the early part of the season. At
such times its long-drawn note or whistle becomes
a rich, amorous warble.
The bobolink, also, has both characteristics,
and, notwithstanding the difference of form and build,
etc., is very suggestive of the English skylark,
as it figures in the books, and is, no doubt, fully
its equal as a songster.
Of our small wood-birds we have three
varieties east of the Mississippi, closely related
to each other, which I have already spoken of, and
which walk, and sing, more or less, on the wing, namely
the two species of water-thrush or wagtails, and the
oven-bird or wood-wagtail. The latter is the
most common, and few observers of the birds can have
failed to notice its easy, gliding walk. Its other
lark trait, namely singing in the air, seems not to
have been observed by any other naturalist. Yet
it is a well-established characteristic, and may be
verified by any person who will spend a half hour in
the woods where this bird abounds on some June afternoon
or evening. I hear it very frequently after sundown,
when the ecstatic singer can hardly be distinguished
against the sky. I know of a high, bald-top mountain
where I have sat late in the afternoon and heard them
as often as one every minute. Sometimes the bird
would be far below me, sometimes near at hand; and
very frequently the singer would be hovering a hundred
feet above the summit. He would start from the
trees on one side of the open space, reach his climax
in the air, and plunge down on the other side.
His descent after the song is finished is very rapid,
and precisely like that of the titlark when it sweeps
down from its course to alight on the ground.
I first verified this observation
some years ago. I had long been familiar with
the song, but had only strongly suspected the author
of it, when, as I was walking in the woods one evening,
just as the leaves were putting out, I saw one of
these birds but a few rods from me. I was saying
to myself, half audibly, “Come, now, show off,
if it is in you; I have come to the woods expressly
to settle this point,” when it began to ascend,
by short hops and flights, through the branches, uttering
a sharp, preliminary chirp. I followed it with
my eye; saw it mount into the air and circle over
the woods; and saw it sweep down again and dive through
the trees, almost to the very perch from which it
had started.
As the paramount question in the life
of a bird is the question of food, perhaps the most
serious troubles our feathered neighbors encounter
are early in the spring, after the supply of fat with
which Nature stores every corner and by-place of the
system, thereby anticipating the scarcity of food,
has been exhausted, and the sudden and severe changes
in the weather which occur at this season make unusual
demands upon their vitality. No doubt many of
the earlier birds die from starvation and exposure
at this season. Among a troop of Canada sparrows
which I came upon one March day, all of them evidently
much reduced, one was so feeble that I caught it in
my hand.
During the present season, a very
severe cold spell the first week in March drove the
bluebirds to seek shelter about the houses and outbuildings.
As night approached, and the winds and the cold increased,
they seemed filled with apprehension and alarm, and
in the outskirts of the city came about the windows
and the doors, crept beneath the blinds, clung to
the gutters and beneath the cornice, flitted from
porch to porch, and from house to house, seeking in
vain from some safe retreat from the cold. The
street pump, which had a small opening just over the
handle, was an attraction which they could not resist.
And yet they seemed aware of the insecurity of the
position; for no sooner would they stow themselves
away into the interior of the pump, to the number
of six or eight, than they would rush out again, as
if apprehensive of some approaching danger. Time
after time the cavity was filled and refilled, with
blue and brown intermingled, and as often emptied.
Presently they tarried longer than usual, when I made
a sudden sally and captured three, that found a warmer
and safer lodging for the night in the cellar.
In the fall, birds and fowls of all
kinds become very fat. The squirrels and mice
lay by a supply of food in their dens and retreats,
but the birds, to a considerable extent, especially
our winter residents, carry an equivalent in their
own systems, in the form of adipose tissue. I
killed a red-shouldered hawk one December, and on
removing the skin found the body completely encased
in a coating of fat one quarter of an inch in thickness.
Not a particle of muscle was visible. This coating
not only serves as a protection against the cold,
but supplies the waste of the system when food is scarce
or fails altogether.
The crows at this season are in the
same condition. It is estimated that a crow needs
at least half a pound of meat per day, but it is evident
that for weeks and months during the winter and spring
they must subsist on a mere fraction of that amount.
I have no doubt that a crow or hawk, when in his fall
condition, would live two weeks without a morsel of
food passing his beak; a domestic fowl will do as much.
One January I unwittingly shut a hen under the door
of an outbuilding, where not a particle of food could
be obtained, and where she was entirely unprotected
from the severe cold. When the luckless Dominick
was discovered, about eighteen days afterward, she
was brisk and lively, but fearfully pinched up, and
as light as a bunch of feathers. The slightest
wind carried her before it. But by judicious feeding
she was soon restored.
The circumstances of the bluebirds
being emboldened by the cold suggests the fact that
the fear of man, which by now seems like an instinct
in the birds, is evidently an acquired trait, and foreign
to them in a state of primitive nature. Every
gunner has observed, to his chagrin, how wild the
pigeons become after a few days of firing among them;
and, to his delight, how easy it is to approach near
his game in new or unfrequented woods. Professor
Baird tells me that a correspondent of theirs
visited a small island in the Pacific Ocean, situated
about two hundred miles off Cape St. Lucas, to procure
specimens. The island was but a few miles in
extent, and had probably never been visited half a
dozen times by human beings. The naturalist found
the birds and water-fowls so tame that it was but
a waste of ammunition to shoot them. Fixing a
noose on the end of a long stick, he captured them
by putting it over their necks and hauling them to
him. In some cases not even this contrivance
was needed. A species of mockingbird in particular,
larger than ours and a splendid songster, made itself
so familiar as to be almost a nuisance, hopping on
the table where the collector was writing, and scattering
the pens and paper. Eighteen species were found,
twelve of them peculiar to the island.
Thoreau relates that in the woods
of Maine the Canada jay will sometimes make its meal
with the lumbermen, taking the food out of their hands.
Yet notwithstanding the birds have
come to look upon man as their natural enemy, there
can be little doubt that civilization is on the whole
favorable to their increase and perpetuity, especially
to the smaller species. With man comes flies
and moths, and insects of all kinds in greater abundance;
new plants and weeds are introduced, and, with the
clearing up of the country, are sowed broadcast over
the land.
The larks and snow buntings that come
to us from the north subsist almost entirely upon
the seeds of grasses and plants; and how many of our
more common and abundant species are field-birds, and
entire strangers to deep forests?
In Europe some birds have become almost
domesticated, like the house sparrow; and in our own
country the cliff swallow seems to have entirely abandoned
ledges and shelving rocks, as a place to nest, for
the eaves and projections of farm and other outbuildings.
After one has made the acquaintance
of most of the land-birds, there remain the seashore
and its treasures. How little one knows of the
aquatic fowls, even after reading carefully the best
authorities, was recently forced home to my mind by
the following circumstance: I was spending a
vacation in the interior of New York, when one day
a stranger alighted before the house, and with a cigar
box in his hand approached me as I sat in the doorway.
I was about to say that he would waste his time in
recommending his cigars to me, as I never smoked,
when he said that, hearing I knew something about birds,
he had brought me one which had been picked up a few
hours before in a hay-field near the village, and
which was stranger to all who had seen it. As
he began to undo the box I expected to see some of
our own rarer birds, perhaps the rose-breasted grosbeak
or Bohemian chatterer. Imagine, then, how I was
taken aback when I beheld instead a swallow-shaped
bird, quite as large as a pigeon, with a forked tail,
glossy black above and snow-white beneath. Its
parti-webbed feet, and its long graceful wings, at
a glance told that it was a sea-bird; but as to its
name or habitat I must defer my answer till I could
get a peep into Audubon or some collection.
The bird had fallen down exhausted
in a meadow, and was picked up just as the life was
leaving its body. The place must have been one
hundred and fifty miles from the sea as the bird flies.
As it was the sooty tern, which inhabits the Florida
Keys, its appearance so far north and so far inland
may be considered somewhat remarkable. On removing
the skin I found it terribly emaciated. It had
no doubt starved to death, ruined by too much wing.
Another Icarus. Its great power of flight had
made it bold and venturesome, and had carried it so
far out of its range that it starved to death before
it could return.
The sooty tern is sometimes called
the sea-swallow on account of its form and the power
of flight. It will fly nearly all day at sea,
picking up food from the surface of the water.
There are several species of terns, some of them strikingly
beautiful.
1868.