Karine Aigner / Portrait of a White-throated sparrow, (Zonotrichia albicollis) with white background, Block island, Rhode Island, USA. Bird caught during scientific research.

Donald M. Jones / White-throated Sparrow (Zonotrichia albicollis) in autumn, Troy, Montana

Scott Leslie / White-throated Sparrow (Zonotrichia albicollis) male calling in spring, Nova Scotia, Canada

Scott Leslie / White-throated Sparrow (Zonotrichia albicollis) female calling, Maine

Scott Leslie / White-throated Sparrow (Zonotrichia albicollis) on conifer calling, Maine

Alan Murphy / White-throated Sparrow (Zonotrichia albicollis), Texas

Scott Leslie / White-throated Sparrow (Zonotrichia albicollis) male in breeding plumage, Nova Scotia, Canada

Glenn Bartley / White-throated Sparrow (Zonotrichia albicollis), Manitoba, Canada

Glenn Bartley / White-throated Sparrow (Zonotrichia albicollis) singing, Manitoba, Canada

Glenn Bartley / White-throated Sparrow (Zonotrichia albicollis), Manitoba, Canada

Scott Leslie / White-throated Sparrow (Zonotrichia albicollis) calling, Canada

Scott Leslie / White-throated Sparrow (Zonotrichia albicollis), Canada