Aves > Passeriformes > Tyrannidae > Fluvicolinae > Empidonax > Empidonax difficilis

species: Empidonax difficilis (Western Flycatcher, Moucherolle obscur)

Compare AOU treatments of Empidonax difficilis, in Avibase (1886 to present).

Search for Empidonax difficilis at Cornell Birds of the World.

Annotation: Formerly considered separate from Empidonax occidentalis and known as Pacific-slope Flycatcher.