Black and white coloration is visually striking. A deep contrast in colors can draw the eye and make birds and other animals stand out. But sometimes, it helps them blend in. Birds can be black ...

These birds are olive with bright yellow throats and breasts. And their black eye mask is offset by a blurry white line that separates the face from the head. The common yellowthroat is abundant ...

Contrasting black tail is particularly obvious in flight ... Female and immature vermilion flycatchers have a white throat and white chest with brown streaks; most show pale supercilium ...