Contopus cooperi

The Olive-sided Flycatcher is a large, long-winged flycatcher with a dark vest and a pale centre to the breast. It usually hunts from an exposed snag or treetop and returns to the same perch after catching flying insects. The species breeds in conifer forests and recently burned areas across northern and western North America. It migrates to Central and South America for winter. Its population has declined substantially since the 1960s.
Locations where this species is supported by a dated first record, an unambiguous single-place outing or a reviewed assignment.