Todirostre à dos noir Poecilotriccus pulchellus

Tiny, boldly-colored flycatcher. Compact and short-tailed; yellow below, black above, with a white throat and mustache, and small red shoulder patch. Found in secondary forest, especially with tall bamboo, in a limited range along the foothills of the Andes in southern Peru. Its chirping musical song is often duetted.