Olive-sided flycatcher (Contopus cooperi)

Scientific Classification
Kingdom:Animalia
Phylum:Chordata
Class:Aves
Order:Passeriformes
Family:Tyrannidae
Species:Contopus cooperi
Common:Olive-sided flycatcher

The Olive-sided flycatcher is a passerine bird of the tyrant flycatcher family. It breeds across Canada, Alaska and the northeastern and western United States, and migrates to Central America and the Andes region of South America.

Identification

Adults

Adult male and female olive-sided flycatchers are similar in appearance. They have a dark olive face, upperparts and flanks and light underparts, a large dark bill, large head and a relatively short tail. The white center of breast contrasts sharply with gray sides, giving a vested appearance.

Immature

Immature birds are similar to adults but upperparts more brownish and wing feather edges are washed buff.