Northern Scrub Flycatcher

The northern scrub flycatcher is 13 to 15 cm (5.1 to 5.9 in) long and weighs 10.5 to 15 g (0.37 to 0.53 oz). The sexes have the same plumage. Adults of the nominate subspecies S. a. arenarum have a grayish brown crown that sometimes erects as a shaggy crest. Their face is mostly whitish to pale gray with a whitish supercilium, a dark line through the eye, and a darker gray to the back of the ear coverts. Their back and rump are grayish brown. Their wings are dusky gray with paler grayish to whitish edges on the flight feathers and tips of the wing coverts; the latter show as two wing bars. Voice: The northern scrub flycatcher is not highly vocal. Its most common calls are "an abrupt pweEEe! and peEEap! given singly or doubled". Other calls include a repeated "brisk, whistled phew! - dit" and single "pfweE or weEEe" notes.