This small flycatcher appears large-headed and long-winged, with a short notched tail and a tiny bill. Upperparts are olive gray, turning more gray on the face. The wings show two wing bars (buffy in fall, whitish in summer) and very long primary projection. The whitish eye ring is wider behind the eye. The small bill is mostly dark, with some yellowish at the base of the lower mandible. The throat is gray. The gray or olive-gray on the breast extends down the sides, creating a vested appearance. The belly is yellow. Adults molt on the breeding grounds, so they show bright fresh plumage during autumn migration. Juveniles show buffy wing bars.

Length: 13 (cm) Wingspan: 23 (cm)

Voice:

Song is usually three-part: a sharp chi-bek, followed by a lower churrup, then an ascending grrrip. The first part of the song, often given by itself, suggests the Che-BEK of a Least Flycatcher. Call is a sharp peek.

Habitat:

Mature coniferous and mixed forest.

Behavior:

Active; frequently flicks wings and tail simultaneously. Usually stays high in the forest canopy and perches on interior branches.

Feeding:

Captures insects by flycatching and gleaning from foliage.