willow flycatcher


noun

See under alder flycatcher.

Definition for willow flycatcher (2 of 2)

alder flycatcher

noun

a North American flycatcher, Empidonax alnorum, of alder thickets and other moist areas, that has greenish-brown upper parts and whitish underparts and is almost indistinguishable except by voice from E. traillii (willow flycatcher).