Part 10

It has been computed that these birds sometimes fly as much as a mile or more above the surface of the earth, and when we think of the tiny, fluttering things at this terrible height, it takes our breath away. What a panorama of dark earth and glistening river and ocean must be spread out beneath them! How the big moon must glow in that rarefied air! How diminutive and puerile must seem the houses and cities of human fashioning!

The instinct of migration is one of the most wonderful in the world. A young bob-white and a bobolink are hatched in the same New England field. The former grows up and during the fall and winter forms one of the covey which is content to wander a mile or two, here and there, in search of good feeding grounds. Hardly has the bobolink donned his first full dress before an irresistible impulse seizes him. One night he rises up and up, ever higher on fluttering wings, sets his course southward, gives you a glimpse of him across the moon, and keeps on through Virginia to Florida, across seas, over tropical islands, far into South America, never content until he has put the great Amazon between him and his far distant birthplace.

He who, from zone to zone, Guides through the boundless sky thy certain flight, In the long way that I must tread alone, Will lead my steps aright. William Cullen Bryant.

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MAY

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THE HIGH TIDE OF BIRD LIFE

For abundance and for perfection of song and plumage, of the whole year, May is the month of birds. Insects appear slowly in the spring and are numerous all summer; squirrels and mice are more or less in evidence during all the twelve months; reptiles unearth themselves at the approach of the warm weather, and may be found living their slow, sluggish life until late in the fall. In eggs, cocoons, discarded bird's-nests, in earthen burrows, or in the mud at the bottom of pond or stream, all these creatures have spent the winter near where we find them in the spring. But birds are like creatures of another world; and, although in every summer's walk we may see turtles, birds, butterflies, and chipmunks, all interweaving their life paths across one another's haunts, yet the power of extended flight and the wonderful habit of continental migration set birds apart from all other living creatures. A bird during its lifetime has almost twice the conscious existence of, say, a snake or any hibernating mammal. And now in early May, when the creatures of the woods and fields have only recently opened their sleepy eyes and stretched their thin forms, there comes the great worldwide army of the birds, whose bright eyes peer at us from tree, thicket, and field, whose brilliant feathers and sweet songs bring summer with a leap--the height of the grand symphony, of which the vernal peeping of the frogs and the squirrels' chatter were only the first notes of the prelude.

Tantalus-like is the condition of the amateur bird-lover, who, book in hand, vainly endeavours to identify the countless beautiful forms which appear in such vast numbers, linger a few days and then disappear, passing on to the northward, but leaving behind a goodly assemblage which spends the summer and gives abundant opportunity for study during the succeeding months. In May it is the migrants which we should watch, and listen to, and "ogle" with our opera glasses. Like many other evanescent things, those birds which have made their winter home in Central America--land yet beyond our travels--and which use our groves merely as half-way houses on their journey to the land of their birth, the balsams of Quebec, or the unknown wastes of Labrador, seem most precious, most worthy at this time of our closest observation.

More confusing--albeit the more delightful--is a season when continued cold weather and chilly rains hold back all but the hardiest birds, until--like the dammed-up piles of logs trembling with the spring freshets--the tropic winds carry all before them, and all at once winter birds which have sojourned only a few miles south of us, summer residents which should have appeared weeks ago, together with the great host of Canadian and other nesters of the north, appear within a few days' time.

A backward season brings strangers into close company for a while. A white-throat sings his clear song of the North, and a moment later is answered by an oriole's melody, or the sweet tones of a rose-breasted grosbeak--the latter one of those rarely favoured birds, exquisite in both plumage and song.

The glories of our May bird life are the wood warblers, and innumerable they must seem to one who is just beginning his studies; indeed, there are over seventy species that find their way into the United States. Many are named from the distribution of colour upon their plumage--the blue-winged yellow, the black-throated blue, chestnut-sided, bay-breasted, and black poll. Perhaps the two most beautiful--most reflective of bright tropical skies and flowers--are the magnolia and the blackburnian. The first fairly dazzles us with its bluish crown, white and black face, black and olive-green back, white marked wings and tail, yellow throat and rump, and strongly streaked breast. The blackburnian is an exquisite little fellow, marked with white and black, but with the crown, several patches on the face, the throat and breast of a rich warm orange that glows amid the green foliage like a living coal of fire. The black poll warbler is an easy bird to identify; but do not expect to recognise it when it returns from the North in the fall. Its black crown has disappeared, and in general it looks like a different bird.

At the present time when the dogwood blossoms are in their full perfection, and the branches and twigs of the trees are not yet hidden, but their outlines only softened by the light, feathery foliage, the tanagers and orioles have their day. Nesting cares have not yet made them fearful of showing their bright plumage, and scores of the scarlet and orange forms play among the branches.

The flycatchers and vireos now appear in force--little hunters of insects clad in leafy greens and browns, with now and then a touch of brightness--as in the yellow-throated vireo or in the crest of the kingbird.

The lesser sandpipers, both the spotted and the solitary, teeter along the brooks and ponds, and probe the shallows for tiny worms. Near the woody streams the so-called water thrushes spring up before us. Strange birds these, in appearance like thrushes, in their haunts and in their teetering motion like sandpipers, but in reality belonging to the same family as the tree-loving wood warblers. A problem not yet solved by ornithologists is: what was the mode of life of the ancestor of the many warblers? Did he cling to and creep along the bark, as the black-and-white warbler, or feed from the ground or the thicket as does the worm-eating? Did he snatch flies on the wing as the necklaced Canadian warbler, or glean from the brook's edge as our water thrush? The struggle for existence has not been absent from the lives of these light-hearted little fellows, and they have had to be jack-of-all-trades in their search for food.

The gnats and other flying insects have indeed to take many chances when they slip from their cocoons and dance up and down in the warm sunlight! Lucky for their race that there are millions instead of thousands of them; for now the swifts and great numbers of tree and barn swallows spend the livelong day in swooping after the unfortunate gauzy-winged motes, which have risen above the toad's maw upon land, and beyond the reach of the trout's leap over the water.

It would take an article as long as this simply to mention hardly more than the names of the birds that we may observe during a walk in May; and with bird book and glasses we must see for ourselves the bobolinks in the broad meadows, the cowbirds and rusty blackbirds, and, pushing through the lady-slipper marshes, we may surprise the solitary great blue and the little green herons at their silent fishing.

No matter how late the spring may be, the great migration host will reach its height from the tenth to the fifteenth of the month. From this until June first, migrants will be passing, but in fewer and fewer numbers, until the balance comes to rest again, and we may cease from the strenuous labours of the last few weeks, confident that those birds that remain will be the builders of the nests near our homes--nests that they know so well how to hide. Even before the last day of May passes, we see many young birds on their first weak-winged flights, such as bluebirds and robins; but June is the great month of bird homes, as to May belong the migrants.

Robins and mocking birds that all day long Athwart straight sunshine weave cross-threads of song. Sidney Lanier.

ANIMAL FASHIONS

Warm spring days bring other changes than thawing snowbanks and the swelling buds and leaves, which seem to grow almost visibly. It is surprising how many of the wild folk meet the spring with changed appearance--beautiful, fantastic or ugly to us; all, perhaps, beautiful to them and to their mates.

As a rule we find the conditions which exist among ourselves reversed among the animals; the male "blossoms forth like the rose," while the female's sombre winter fur or feathers are reduplicated only by a thinner coat for summer. The "spring opening" of the great classes of birds and animals is none the less interesting because its styles are not set by Parisian modistes.

The most gorgeous display of all is to be found among the birds, the peacock leading in conspicuousness and self-consciousness. What a contrast to the dull earthy-hued little hen, for whose slightest favour he neglects food to raise his Argus-eyed fan, clattering his quill castanets and screaming challenges to his rivals! He will even fight bloody battles with invading suitors; and, after all, failure may be the result. Imagine the feelings of two superb birds fighting over a winsome browny, to see her--as I have done--walk off with a spurless, half-plumaged young cock!

The males of many birds, such as the scarlet tanager and the indigo bunting, assume during the winter the sombre green or brown hue of the female, changing in spring to a glorious scarlet and black, or to an exquisite indigo colour respectively. Not only do most of the females of the feathered world retain their dull coats throughout the year, but some deface even this to form feather beds for the precious eggs and nestlings, to protect which bright colours must be entirely foregone.

The spring is the time when decorations are seen at their best. The snowy egret trails his filmy cloud of plumes, putting to shame the stiff millinery bunches of similar feathers torn from his murdered brethren. Even the awkward and querulous night heron exhibits a long curling plume or two. And what a strange criterion of beauty a female white pelican must have! To be sure, the graceful crest which Sir Pelican erects is beautiful, but that huge, horny "keel" or "sight" on his bill! What use can it subserve, æsthetic or otherwise? One would think that such a structure growing so near his eyes, and day by day becoming taller, must occupy much of his attention.

The sheldrake ducks also have a fleshy growth on the bill. A turkey gobbler, when his vernal wedding dress is complete, is indeed a remarkable sight. The mass of wattles, usually so gray and shrunken, is now of most vivid hues--scarlet, blue, vermilion, green,--the fleshy tassels and swollen knobs making him a most extraordinary creature.

Birds are noted for taking exquisite care of their plumage, and if the feathers become at all dingy or unkempt, we know the bird is in bad health.

What a time the deer and the bears, the squirrels and the mice, have when changing their dress! Rags and tatters; tatters and rags! One can grasp a handful of hair on the flank of a caribou or elk in a zoological park, and the whole will come out like thistledown; while underneath is seen the sleek, short summer coat. A bear will sometimes carry a few locks of the long, brown winter fur for months after the clean black hairs of the summer's coat are grown. What a boon to human tailors such an opportunity would be--to ordain that Mr. X. must wear the faded collar or vest of his old suit until bills are paid!