Day 299: Blackpoll Warbler

Blackpoll Warblers are common migrants through Maryland this time of year. During the breeding season, Blackpoll Warblers have a black cap, white cheeks and white wing bars. Non-breeding birds, like the one we saw, have greenish heads, dark-streaked greenish upperparts and yellowish breasts.

I normally identify a Blackpoll Warbler by its call. They have one of the highest pitched songs known, and it's a simple repetition of high tsi notes.