hackssilikon.blogg.se - Yellow rumped warbler scientific name

This passerine bird was long known to be closely related to its counterparts Audubon's warbler and myrtle warbler, and at various times the three forms have been classed as either one, two or three species.

3 Seasonal, age, and gender differences.

This change in location coincides with their eating habits. In the fall and winter, however, they migrate to more open, shrubby areas. The Audubon's warbler is most commonly found in coniferous forests, but can also be found in deciduous forests during the spring and summer. These birds are insectivorous, but will readily take berries in winter, when they form small flocks. Audubon's warblers nest in a tree, laying four or five eggs in a cup nest. The breeding habitat is a variety of coniferous and mixed woodland. This form is distinguished from the myrtle warbler by its lack of a whitish eyestripe, its yellow throat, and concolorous cheek patch.

The female has a similar pattern, but the back is brown, as are the breast streaks. It has white tail patches, and the breast is streaked black. The summer male Audubon's warbler has a slate blue back, and yellow crown, rump and flank patch. It is migratory, wintering from the southern parts of the breeding range into western Central America. It breeds in much of western Canada, the western United States, and into Mexico.

Īudubon's warbler has a westerly distribution. In North America, the discovery of a hybrid zone between the two forms in western Canada led the American Ornithologists' Union in 1973 to recognize them as a single species. The two forms probably diverged when the eastern and western populations were separated in the last ice age. This passerine bird was long known to be closely related to its eastern counterpart, the myrtle warbler, and at various times the two forms have been classed as separate species or grouped as the yellow-rumped warbler, Setophaga coronata. Audubon's warbler ( Setophaga auduboni) is a small bird of the Parulidae family.