(Setophaga coronata)
This bird was long known to be closely related to its counterparts, the Audubon's Warbler and Goldman's Warbler, and at various times the three forms have been classed as either one, two or three species. At present, the American Ornithological Society and Clements consider the Myrtle, Audubon's, and Goldman's Warbler three subspecies of the Yellow-rumped Warbler (Setophaga coronata coronata, Setophaga coronata auduboni, and Setophaga coronata goldmani respectively) while the IOC World Bird List classifies the Myrtle Warbler, Audubon's, and Goldman's Warbler as separate species (Setophaga coronata, Setophaga auduboni, and Setophaga goldmani).