White-throated Sparrow
Zonotrichia albicollis
(L 6.75" WS 9" Wt 0.91 oz)
White- and tan-crowned forms almost
always mate with opposite morph
always mate with opposite morph
...white-striped is more aggressive.
Thatcher Woods, IL
4May09
White-striped form
Tan-striped form
Zonotrichia in Greek means
girdle or band; albicollis in
Latin means white-necked.
girdle or band; albicollis in
Latin means white-necked.
© Cornell
Ornithology
Ornithology
© Audubon
Society
Society