Species Floor Depth Entrance Diameter Height of of above of above cavity cavity floor entrance ground
_Inches Inches Inches Inches Feet_
Bluebird 5 by 5 8 6 1 1/2 5 to 10 Robin 6 by 8 8 [1] [1] 6 to 15 Chickadee 4 by 4 8 to 10 8 1 1/8 6 to 15 Tufted t.i.tmouse 4 by 4 8 to 10 8 1 1/4 6 to 15 White-breasted Nuthatch 4 by 4 8 to 10 8 1 1/4 12 to 20 House Wren 4 by 4 6 to 8 1 to 6 7/8 6 to 10 Bewick Wren 4 by 4 6 to 8 1 to 6 1 6 to 10 Carolina Wren 4 by 4 6 to 8 1 to 6 1 1/8 6 to 10 Dipper 6 by 6 6 1 3 1 to 3 Violet-green Swallow 5 by 5 6 1 to 6 1 1/2 10 to 15 Tree Swallow 5 by 5 6 1 to 6 1 1/2 10 to 15 Barn Swallow 6 by 6 6 [1] [1] 8 to 12 Martin 6 by 6 6 1 2 1/2 15 to 20 Song Sparrow 6 by 6 6 [2] [2] 1 to 3 House Finch 6 by 6 6 4 2 8 to 12 Phoebe 6 by 6 6 [1] [1] 8 to 12 Crested Flycatcher 6 by 6 8 to 10 8 2 8 to 20 Flicker 7 by 7 16 to 18 16 2 1/2 6 to 20 Red-headed Woodp.e.c.k.e.r 6 by 6 12 to 15 12 2 12 to 20 Golden-fronted Woodp.e.c.k.e.r 6 by 6 12 to 15 12 2 12 to 20 Hairy Woodp.e.c.k.e.r 6 by 6 12 to 15 12 1 1/2 12 to 20 Downy Woodp.e.c.k.e.r 4 by 4 8 to 10 8 1 1/4 6 to 20 Screech Owl 8 by 8 12 to 15 12 3 10 to 30 Sparrow Hawk 8 by 8 12 to 15 12 3 10 to 30 Saw-whet Owl 6 by 6 10 to 12 10 2 1/2 12 to 20 Barn Owl 10 by 18 15 to 18 4 6 12 to 18 Wood Duck 10 by 18 10 to 15 3 6 4 to 20
[1] One or more sides open.
[2] All sides open.
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The foregoing list does not contain the names of all the kinds of birds which have thus far been induced to occupy these artificial nesting sites, but it has most of them. It should be remembered that hole-nesting birds are the only kind that will ever use a bird box.
One need not expect a Meadowlark to leave its nest in the gra.s.s for a box on a pole, nor imagine that an Oriole will give up the practice of weaving its swinging cradle on an elm limb to go into a box nailed to the side of the tree.
Feeding Birds.--Much can be done to bring birds about the home or the schoolhouse by placing food where they can readily get it. The majority of land birds that pa.s.s the winter in Canada or in the colder parts of the United States feed mainly upon seeds. Cracked corn, wheat, rice, sunflower seed, hemp seed, and bird seed, purchased readily in any town, are, therefore, exceedingly attractive articles of diet. Bread crumbs are enjoyed by many species. Food should not be thrown out on the snow unless there is a crust on it or the snow has been well trampled down. {224} Usually it should be placed on boards.
Various feeding plans have been devised to prevent the food from being covered or washed away by snow or rain. Detailed explanations of these can be found in Bulletin No. 1, "Attracting Birds About the Home,"
issued by the National a.s.sociation of Audubon Societies. Suet wired to the limb of a tree on the lawn will give comfort and nourishment to many a Chickadee, Nuthatch and Downy Woodp.e.c.k.e.r. To make a bird sanctuary nesting sites and food are the first requirements. There appears to be no reason why town and city parks should not be made into places of great attraction for the wild birds.
[Ill.u.s.tration: A California hospital for injured birds, erected and maintained by Mrs. Harriet W. Myers of Los Angeles]
_Community Sanctuaries._--At Meriden, New Hampshire, there is a tract of land containing thirty-two acres of fields and woods, dedicated to the comfort and happiness of wild birds. It is owned by the Meriden Bird Club, and owes its existence largely to the intelligence and enthusiasm of Ernest H. Baynes, bird-lover and lecturer, who lives there. The entire community takes an interest in its maintenance, {225} and there birds are fed and nesting places provided. It is in the widest sense a "community sanctuary." There are now a number of these cooperative bird havens established and cared for in practically the same way. One is in Cincinnati, another in Ithaca, New York, and still another at Greenwich, Connecticut.
_Birdcraft Sanctuary._--The best equipped of this cla.s.s of community bird refuges, as distinguished from private estates, or Audubon Society, State, or Federal bird reservations, is Birdcraft Sanctuary in Fairfield, Connecticut, a tract of ten acres presented to the Connecticut Audubon Society in June, 1914. Mrs. Mabel Osgood Wright, President of the Connecticut Society, has written that in the creation of this sanctuary it was decided that certain requirements were necessary:
"A cat-proof fence to surround the entire place. That it may not look aggressive, it should be set well inside the picturesque old wall.
Stone gateposts and a rustic gate at the entrance on the {226} highway.
A bungalow for the caretaker, wherein there shall be a room for the meetings of the Society"s Executive Committee and Board. A tool and workshop of corresponding style. Several rustic shelters and many seats.
"The a.s.sembling of the various springs into a pond, so designed as to make an island of a place where the Redwings nest.
"Trails to be cut through the brush and the turf gra.s.s in a charming bit of old orchard on the hilltop, to be restored for the benefit of worm-pulling Robins.
"Several stone basins to be constructed for birdbaths, houses to be put up of all sorts, from Wren boxes, Von Berlepsch model. Flicker and Owl boxes, to a Martin hotel; and, lastly, the supplementing of the natural growth by planting pines, spruces, and hemlocks for windbreaks, and mountain ashes, mulberries, sweet cherries, flowering shrubs and vines for berries and Hummingbird honey."
Not only were all these things done, but there has {227} been built and equipped a small museum of Natural History, unique in its good taste and usefulness.
_Cemeteries as Bird Sanctuaries._--The interest in the subject of bird sanctuaries is growing every day; in fact, all America is now planning new homes for her birds--homes where they may live with unrestricted freedom, where food and lodging in abundance, and of the best, will be supplied, where bathing-pools will be at their service, where blossoming trees will welcome them in the spring and fields of grain in the fall, quiet places where these privileges will bring to the birds much joy and contentment. Throughout this country there should be a concerted effort to convert the cemeteries, the homes of our friends who have gone away, into sanctuaries for the bird life of this land.
And what isolated spots could be more welcome to the birds than these places that hold so many sad memories for human beings?
No place in the world ought to speak more forcibly to us of the Resurrection than the cemeteries of our land. In them we should hear inspiring bird songs, {228} notice the nesting of birds, and the little ones preparing for their flight into the world. There we should find beautiful flowers and waving grain, typical of that spiritual harvest which should be a.s.sociated in our minds with comfort and peace.
_A Birdless Cemetery._--I visited, not long ago, one of the old-time cemeteries, the pride of a neighbouring city. It was indeed a place of beauty to the eye; but to my mind there is always something flat and insipid about a landscape lacking the music of singing birds.
Therefore I looked and listened for my feathered friends. Some English Sparrows flew up from the drive, and I heard the rusty hinge-like notes of a small company of Purple Crackles that were nesting, I suspected, in the pine trees down the slope, but of really cheerful bird life there appeared to be none in this artificially beautified, forty-acre enclosure. There is no reason to suppose that, under normal conditions, birds would shun a cemetery any more than does the traditional graveyard rabbit.
It was not dread of the dead, such as some mortals {229} have, that kept the song birds from this place; it was the work of the living that had driven them away. From one boundary to another there was scarcely a yard of underbrush where a Thrasher or Chewink might lurk, or in which a Redstart, or a dainty Chestnut-sided Warbler, might place its nest. Not a drop of water was discoverable, where a bird might slake its thirst. Neither in limb nor bole was there a single cavity where a t.i.tmouse, Wren, or Bluebird might construct a bed for its young. No fruit-bearing trees were there to invite the birds in summer; nor, so far as I could see, any berry-bearing shrubs such as birds enjoy, nor any weed patches to attract the flocks of Whitethroats and Juncos that come drifting southward with the falling leaves of autumn.
Had my visit to this place been made late in April, or in May, there might have been a different tale to tell. September might also have yielded more birds than June, for September is a season when the migrants are with us for a time. Then the little _voyageurs_ of the upper air are wont to pause after a {230} night of tiresome flight, and rest for the day in any grove that chances to possess even moderate home comforts.
_Birds of a New York Graveyard._--Some time ago B. S. Bowdish made a careful study of the bird life of St. Paul"s Churchyard, in New York City. This property is three hundred and thirty-three feet long and one hundred and seventy-seven feet wide. In it is a large church and also a church school. Along one side surge the Broadway throngs. From the opposite side come the roar and rumble of an elevated railway. The area contains, according to Mr. Bowdish, three large, ten medium, and forty small trees. With great frequency for two years, field gla.s.s in hand, he pursued his work of making a bird census of the graveyard. No bird"s nest rewarded his search, for the place was absolutely dest.i.tute of feathered songsters during the late spring and summer, and, with a single exception, he never found a bird there in winter. Yet it is interesting to note that in this noisy, limited area, during the {331} periods of migration, he discovered three hundred and twenty-eight birds, embracing forty species.
Why do not more of the birds that pa.s.s in spring tarry in this quiet place for the summer? The answer is that the cemetery has been rendered unattractive to them by the merely human committee in charge of the property.
During the season when birds are engaged with their domestic duties they are usually a very wise little people. They know perfectly well whether a region is calculated to provide them with sure and safe nesting sites, and whether sufficient food and water are available for their daily wants. A little of this same wisdom on our part, and a comparatively small expenditure, might make a bird paradise of almost any cemetery. Such places are not usually frequented by men and boys who go afield for the purpose of shooting. That is an important point in the establishment of a bird sanctuary.
_Eliminate Enemies._--One great enemy of the birds, however, must be guarded against--the domestic {232} cat. This can be done fairly effectively by means of a cat-proof fence.
Gunners and cats having been eliminated, few other enemies of birds need be seriously considered. Bird-catching Hawks are not often numerous in the neighbourhood of cemeteries. Red squirrels are accused of pilfering from birds" nests, and when abundant they may const.i.tute a menace.
Properly constructed bird boxes, wisely placed, have often proved a means of increasing bird life to an astonishing degree; and they are absolutely the only inducement to hole-nesting varieties to remain during the summer in a cemetery from which all standing dead wood has been removed. Even the strong-billed Woodp.e.c.k.e.r will not abide in a region where the only trees are living ones, unless, perchance, an artificial nest entices the resplendent and dashing Flicker to tarry.
Many a Bluebird, with its azure coat gleaming in the sunlight, visits the cemetery in early spring. From perch to perch he flies, and in his plaintive note can be detected the {233} question that every bird asks of his mate: "Where shall we find a place for our nest?" In the end he flies away. Therefore when the roses and lilies bloom the visitor is deprived of the Bluebird"s cheery song, for the little fellow and his mate have departed to the neighbouring farm where they may be found, perhaps, in the old apple orchard.
A few cents expended for lumber and a very little labour in the making of a small box to be attached to the side of a tree or erected on a post, are all that is needed to keep the Bluebirds where they can cheer the hearts of sorrowing visitors. The tiny Wrens, whose loud bursts of song are entirely out of proportion to their size, can be attracted in summer to the proportion of two pairs or more to every acre.
It is a curious fact, of which I believe but little has been written, that birds that build open nests may often be induced to remain in a locality if attractive nesting material is placed within easy reach.
In many a cemetery Orioles could be tempted to weave cradles among the swaying elm limbs if {234} strings and fragments of brightly coloured yarns were placed where the birds could find them. Baron von Berlepsch, whose experiments in attracting birds to his place in Germany have been widely advertised, found that when the tops of bushes were drawn in closely by means of a wire or cord, the resulting thick ma.s.s of leaves and twigs offered so fine a place for concealing nests that few birds could resist the temptation to use them.
Other means of rendering a cemetery alluring to nesting birds will readily present themselves when an active interest is developed in the subject. A little thought, a little care, and a little trouble, would make it possible for many birds to dwell in a cemetery, and it must be remembered that unless they can nest there, the chances are that no great volume of bird music will fill the air.
[Ill.u.s.tration: A Bird Bath]
The young of most song birds are fed to a great extent on the soft larvae of insects, of which there is usually an abundant supply everywhere. Many mother birds, however, like to vary this animal diet {235} with a little fruit juice, and the ripened pulp of the blackberry, strawberry, or mulberry, will cheer the spirits of their nestlings. Such fruits in most places are easily grown, and they make a pleasant addition to the birds" menu. In a well-watered territory {236} birds are always more numerous than in a dry region. You may find a hundred of them along the stream in the valley to one on the mountain-top. A cemetery undecorated with fountains, and through or near which no stream flows, is too dry a place for the average bird to risk the exigencies of rearing a family. A few simply constructed fountains or drinking-pools will work wonders in the way of attracting birds to a waterless territory.
In many graveyards considerable unoccupied s.p.a.ce might well be planted in buckwheat or some other small grain. If this is left uncut the quant.i.ty of nourishing food thus produced will bring together many kinds of grain-eating birds.
_Berries and Fruits for Birds._--Many native shrubs and bushes grow berries that birds will come far to gather. Look over the following list which Frederick H. Kennard, of Ma.s.sachusetts, has recommended, and see if you do not think many of them would be decorative additions to the cemetery. Surely some of them are equal in beauty to many of {237} the shrubs usually planted, and they have the added value of furnishing birds with wholesome food. Here is a part of Mr. Kennard"s list: shad-bush, gray, silky, and red osier, cornel, dangleberry, huckleberry, inkberry, black alder, bayberry, shining, smooth, and staghorn sumachs, large-flowering currant, thimbleberry, blackberry, elder, s...o...b..rry, dwarf bilberry, blueberry, black haw, hobblebush, and arrow-wood. In the way of fruit-bearing shade trees he recommends sugar maple, flowering dogwood, white and c.o.c.kspur thorn, native red mulberry, tupelo, black cherry, choke cherry, and mountain ash. For the same purpose he especially recommends the planting of the following vines: Virginia creeper, bull-beaver, frost grape, and fox grape.
Such shrubs and vines are usually well stripped of their berries after the first heavy snowfall. That is the time to begin feeding the birds in earnest. The more food wisely placed where the birds can get it, the more birds you will surely have in the winter. Seeds and grain, with a judicious mixture of animal {238} fat, form the best possible ration for the little feathered pilgrims. Rye, wheat, sunflower seeds, and cracked corn, mixed together in equal parts and accompanied by a liberal sprinkling of ground suet and beef sc.r.a.p, make an excellent food for birds at this season. This should be placed on shelves attached to trees or buildings, or on oilcloth spread on the snow, or on the ground where the snow has been sc.r.a.ped away. On one occasion the writer attracted many birds by the simple method of providing them with finely pounded fresh beef bones. Furnishing birds with food in winter might well be made a pleasant and profitable duty of the children who attend Sunday-school in rural churches that have graveyards near.
Why should we not make a bird sanctuary of every city park and cemetery in America? Why leave these places to the Sparrows, the Grackles, and perhaps the Starlings, when Bluebirds and Thrushes are within hail, eager to come if the hand of invitation be extended?
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CHAPTER XII
TEACHING BIRD STUDY
A little after six o"clock one July morning on the campus of the University of Tennessee, I stood near the centre of a semi-circle of twenty-five school teachers whose expressions indicated a high state of excitement, and whose fifty eyes were riveted on a scene of slaughter but a few feet from them. For five minutes we had scarcely moved.
During this time the lives of thirty-two specimens of animal life had been blotted out. The perpetrator of this holocaust was a creature known to scientists as _Spizella socialis_--called by ordinary people Chipping Sparrow. Its victims were small insects which but a moment before were disporting themselves on the gra.s.s.
_Preparation of Teachers._--One teacher expressed {240} surprise that a bird could find so many of these choice morsels in so short a time.
She had never imagined that so many insects inhabited so small an area as that to which the bird had confined its operations. "Very well,"
said the instructor, "suppose all of you get down and see how many insects you can find in five minutes." So while he held the watch all proceeded to take part in a bug-hunting contest. In this novel undertaking even the women of the cla.s.s displayed great zeal. When time was called it was found that one student had a credit of fourteen, another sixteen, a third nineteen, and one tall young woman with gla.s.ses exhibited twenty-one insects in the folds of her handkerchief.