Kitabı oku: «Birds, Illustrated by Color Photography, Vol. 1, No. 6», sayfa 3

THE RING-BILLED GULL

THE Ring-billed Gull is a common species throughout eastern North America, breeding throughout the northern tier of the United States, whose northern border is the limit of its summer home. As a rule in winter it is found in Illinois and south to the Gulf of Mexico. It is an exceedingly voracious bird, continually skimming over the surface of the water in search of its finny prey, and often following shoals of fish to great distances. The birds congregate in large numbers at their breeding places, which are rocky islands or headlands in the ocean. Most of the families of Gulls are somewhat migratory, visiting northern regions in summer to rear their young. The following lines give with remarkable fidelity the wing habits and movements of this tireless bird:

 
“On nimble wing the gull
Sweeps booming by, intent to cull
Voracious, from the billows’ breast,
Marked far away, his destined feast.
Behold him now, deep plunging, dip
His sunny pinion’s sable tip
In the green wave; now highly skim
With wheeling flight the water’s brim;
Wave in blue sky his silver sail
Aloft, and frolic with the gale,
Or sink again his breast to lave,
And float upon the foaming wave.
Oft o’er his form your eyes may roam,
Nor know him from the feathery foam,
Nor ’mid the rolling waves, your ear
On yelling blast his clamor hear.”
 

This Gull lives principally on fish, but also greedily devours insects. He also picks up small animals or animal substances with which he meets, and, like the vulture, devours them even in a putrid condition. He walks well and quickly, swims bouyantly, lying in the water like an air bubble, and dives with facility, but to no great depth.

As the breeding time approaches the Gulls begin to assemble in flocks, uniting to form a numerous host. Even upon our own shores their nesting places are often occupied by many hundred pairs, whilst further north they congregate in countless multitudes. They literally cover the rocks on which their nests are placed, the brooding parents pressing against each other.

Wilson says that the Gull, when riding bouyantly upon the waves and weaving a sportive dance, is employed by the poets as an emblem of purity, or as an accessory to the horrors of a storm, by his shrieks and wild piercing cries. In his habits he is the vulture of the ocean, while in grace of motion and beauty of plumage he is one of the most attractive of the splendid denizens of the ocean and lakes.

The Ring-billed Gull’s nest varies with localities. Where there is grass and sea weed, these are carefully heaped together, but where these fail the nest is of scanty material. Two to four large oval eggs of brownish green or greenish brown, spotted with grey and brown, are hatched in three or four weeks, the young appearing in a thick covering of speckled down. If born on the ledge of a high rock, the chicks remain there until their wings enable them to leave it, but if they come from the shell on the sand of the beach they trot about like little chickens. During the first few days they are fed with half-digested food from the parents’ crops, and then with freshly caught fish.

The Gull rarely flies alone, though occasionally one is seen far away from the water soaring in majestic solitude above the tall buildings of the city.

THE MOCKING BIRD

THE Mocking Bird is regarded as the chief of songsters, for in addition to his remarkable powers of imitation, he is without a rival in variety of notes. The Brown Thrasher is thought by many to have a sweeter song, and one equally vigorous, but there is a bold brilliancy in the performance of the Mocker that is peculiarly his own, and which has made him par excellence the forest extemporizer of vocal melody. About this of course there will always be a difference of opinion, as in the case of the human melodists.

So well known are the habits and characteristics of the Mocking Bird that nearly all that could be written about him would be but a repetition of what has been previously said. In Illinois, as in many other states, its distribution is very irregular, its absence from some localities which seem in every way suited being very difficult to account for. Thus, according to “Birds of Illinois,” while one or two pairs breed in the outskirts of Mount Carmel nearly every season, it is nowhere in that vicinity a common bird. A few miles further north, however, it has been found almost abundant. On one occasion, during a three mile drive from town, six males were seen and heard singing along the roadside. Mr. H. K. Coale says that he saw a mocking bird in Stark county, Indiana, sixty miles southeast of Chicago, January 1, 1884; that Mr. Green Smith had met with it at Kensington Station, Illinois, and that several have been observed in the parks and door-yards of Chicago. In the extreme southern portion of the state the species is abundant, and is resident through the year.

The Mocking Bird does not properly belong among the birds of the middle or eastern states, but as there are many records of its nesting in these latitudes it is thought to be safe to include it. Mrs. Osgood Wright states that individuals have often been seen in the city parks of the east, one having lived in Central Park, New York city, late into the winter, throughout a cold and extreme season. They have reared their young as far north as Arlington, near Boston, where they are noted, however, as rare summer residents. Dr. J. A. Allen, editor of The Auk, notes that they occasionally nest in the Connecticut Valley.

The Mocking Bird has a habit of singing and fluttering in the middle of the night, and in different individuals the song varies, as is noted of many birds, particularly canaries. The song is a natural love song, a rich dreamy melody. The mocking song is imitative of the notes of all the birds of field, forest, and garden, broken into fragments.

The Mocker’s nest is loosely made of leaves and grass, rags, feathers, etc., plain and comfortable. It is never far from the ground. The eggs are four to six, bluish green, spattered with shades of brown.

Wilson’s description of the Mocking Bird’s song will probably never be surpassed: “With expanded wings and tail glistening with white, and the bouyant gayety of his action arresting the eye, as his song does most irresistably the ear, he sweeps around with enthusiastic ecstasy, and mounts and descends as his song swells or dies away. And he often deceives the sportsman, and sends him in search of birds that are not perhaps within miles of him, but whose notes he exactly imitates.”

Very useful is he, eating large spiders and grasshoppers, and the destructive cottonworm.