But the Tree Sparrow a rufus/red eye line, The Sibley Guide to Birds explains, and the Chipping Sparrow has a black eye line, with white above it... And the Tree Sparrow has a two-coloured beak, yellow and black, while the Chipping Sparrow's beak is black alone... And the Tree Sparrow has a bit more colour on its breast... And...
In any case, the post below features a Chipping Sparrow, my first backyard Regina sparrow for May. And here is an American Tree Sparrow:
|American Tree Sparrow - with rufus eye line and half yellow beak © SB|
Location: North of Regina, Saskatchewan, Canada.
Photo date: April 29, 2013.