American Tree Sparrow, Illinois Winter Bird



The Kishwaukee River running through Blackhawk Springs Forest Preserve, Rockford, IL; 2/12/11

A common winter visitor to Blackhawk Springs Forest Preserve (Above) in Northern Illinois, is the American Tree Sparrow (below).

American Tree Sparrow, Blackhawk Springs Forest Preserve, Rockford, IL; 12/28/10.

You can read more about American Tree Sparrows from my 8/22/10 and 11/13/10 posts:

http://northernillinoisbirder.blogspot.com/2010/08/american-tree-sparrow-5-and-field.html

http://northernillinoisbirder.blogspot.com/2010/11/sparrows-of-horicon-marsh-nwr.html