LINCOLN'S SPARROW, GREEN, MICHIGAN, MAY 22, 2014
Pentax F* 300 f4.5 plus 1.5x Kenko converter (450mm)
1/160 sec. f8
It took some consultation of the bird books and fellow avian enthusiasts to identify this one. At first I thought it was a Chipping Sparrow, very common in the Upper Peninsula, but the divided brown crown and two-tone bill are markers for the Lincoln's Sparrow.