Читать книгу Birds, Illustrated by Color Photography, Vol. 2, No. 6 - Various - Страница 2

IN an early number of Birds we presented a picture of the common Bluebird, which has been much admired. The mountain Bluebird, whose beauty is thought to excel that of his cousin, is probably known to few of our readers who live east of the Rocky Mountain region, though he is a common winter sojourner in the western part of Kansas, beginning to arrive there the last of September, and leaving in March and April. The habits of these birds of the central regions are very similar to those of the eastern, but more wary and silent. Even their love song is said to be less loud and musical. It is a rather feeble, plaintive, monotonous warble, and their chirp and twittering notes are weak. They subsist upon the cedar berries, seeds of plants, grasshoppers, beetles, and the like, which they pick up largely upon the ground, and occasionally scratch for among the leaves. During the fall and winter they visit the plains and valleys, and are usually met with in small flocks, until the mating season.

Nests of the Mountain Bluebird have been found in New Mexico and Colorado, from the foothills to near timber line, usually in deserted Woodpecker holes, natural cavities in trees, fissures in the sides of steep rocky cliffs, and, in the settlements, in suitable locations about and in the adobe buildings. In settled portions of the west it nests in the cornice of buildings, under the eaves of porches, in the nooks and corners of barns and outhouses, and in boxes provided for its occupation. Prof. Ridgway found the Rocky Mountain Bluebird nesting in Virginia City, Nevada, in June. The nests were composed almost entirely of dry grass. In some sections, however, the inner bark of the cedar enters largely into their composition. The eggs are usually five, of a pale greenish-blue.

The females of this species are distinguished by a greener blue color and longer wings, and this bird is often called the Arctic Bluebird. It is emphatically a bird of the mountains, its visits to the lower portions of the country being mainly during winter.