Panama Flycatcher
Myiarchus panamensis
The Panama flycatcher is 19 to 20 cm (7.5 to 7.9 in) long and weighs about 28 to 38.5 g (0.99 to 1.4 oz). The sexes have the same plumage. Adults of the nominate subspecies have a grayish olive crown and upperparts. The crown has a slight crest and is slightly darker in the center, giving a streaked effect. Their face is otherwise gray. Their wings are mostly grayish olive with pale whitish yellow outer webs on the tertials. Their tail is brown with slightly paler outer vanes on the outermost pair of feathers. Voice: The Panama flycatcher's dawn song is "isolated, short, slowly modulated whistles given every 2–3 seconds"; during the day it makes the same song with longer intervals between the whistles. Its calls are "epeated hiccups (normally disyllabic), rasping whistles and rolls in response to intruding conspecifics". In Costa Rica it "histles a clear wheer...
ID text from Wikipedia, CC BY-SA 4.0
Swainson's Flycatcher
Myiarchus swainsoni
Swainson's flycatcher is 19.5 to 21 cm (7.7 to 8.3 in) long and weighs about 21 to 38 g (0.74 to 1.3 oz). The sexes have the same plumage. Adults of the nominate subspecies have a dull olive gray-green crown and upperparts with slightly browner uppertail coverts. The crown feathers form a slight crest. Their wings are mostly brown with rufous outer edges on the primaries. The secondaries and tertials have pale whitish yellow outermost webs and the tertials dirty white to rufous innermost webs. Their greater and median wing coverts have wide fuscous gray tips. Their tail is brown. Voice: The dawn song of Swainson's flycatcher is "alternated mournful whistles, huit notes and more complex phrases". Its typical call is also a mournful whistle.
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Panama Flycatcher and Swainson's Flycatcher.