Prairie Warbler
Setophaga discolor

f7.1 @ 1/2000s, ISO:1600, Nikon D3S w 500mm

"Prairie Warbler," Wikipedia, the free encyclopedia. The prairie warbler is a small songbird of the New World warbler family. These birds have yellow underparts with dark streaks on the flanks, and olive upperparts with rusty streaks on the back; they have a yellow line above the eye, a dark line through it, and a yellow spot below it. These birds have black legs, long tails, two pale wing bars, and thin pointed bills. Coloring is duller in female and immatures.
Francis A. Crane Wildlife Management Area, East Falmouth, Massachusetts