5/2/2023 0 Comments Yellow rumpedAs a male myrtle warbler, this individual has a black "mask." Summer adult male yellow-rumped warblers have slate-blue backs and yellow crowns (barely visible here). The myrtle form was apparently separated from the others by glaciation during the Pleistocene, and the Audubon's form may have originated more recently through hybridization between the myrtle warbler and the Mexican nigrifrons form. Proper taxonomic treatments remain a matter of debate. 10.2 classifies the myrtle, Audubon's, and Goldman's as separate species ( Setophaga coronata, Setophaga auduboni, and Setophaga goldmani, respectively), and the black-fronted warbler as a subspecies of S. In contrast, the International IOC World Bird List v. A 2017 proposal to split the yellow-rumped warbler into separate species failed. Since 1973, the American Ornithologists' Union has elected to merge these passerine birds as one species. This individual is a myrtle warbler, as shown by the white throat. In summer, adult females have streaked backs of black on blue-green and conspicuous yellow patches on the crown, flank, and rump. The genus name Setophaga is from ancient Greek ses, "moth", and phagos, "eating", and the specific coronata means "crowned". The myrtle and Audubon's groups, as two major subspecies, are distinguished by noticeable features such as different color of throat, etc. All subspecies groups of the yellow-rumped warbler are characterized by the yellow rump as its name implies, while intra-group and inter-group variations in appearance exist in spite of many similarities. nigrifrons) and the Guatemalan Goldman's warbler (spp. group auduboni) the northwest Mexican black-fronted warbler (spp. coronata) its western counterpart, Audubon's warbler (spp. The species combines four closely related forms: the eastern myrtle warbler (spp. The diet of the yellow-rumped warbler is based primarily on insects, though the species does eat fruits such as juniper berries as well, especially in winter. The species generally prefers coniferous forests or mixed coniferous-deciduous forests as its breeding habitat, while during the winter it can be found inhabiting more open areas such as shrublands that offer food resources. as well as Canada and Central America, with the population concentrating in the continent's northern parts during the breeding season and migrating southwards to southern North and Central America in Winter. Its extensive distribution range connects both the Pacific and Atlantic coasts of the U.S. The yellow-rumped warbler ( Setophaga coronata) is a regular North American bird species that can be commonly observed all across the continent.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |