Marble-faced Bristle Tyrant
Pogonotriccus ophthalmicus
The marble-faced bristle tyrant is about 11.5 to 12 cm (4.5 to 4.7 in) long and weighs 10 to 11 g (0.35 to 0.39 oz). The sexes have the same plumage. Adults of the nominate subspecies have a slate-gray crown, white lores, and a white supercilium on an otherwise gray and white grizzled face. Their ear coverts are white to very pale yellow with a black crescent at the rear. Their back and rump are bright yellow-olive. Their wings are dusky with pale olive-yellow to yellow edges on the flight feathers. Their wing coverts are dusky with pale olive-yellow to yellow tips that show as two wing bars. Voice: The marble-faced bristle tyrant's vocalizations vary somewhat among the subspecies. In Venezuela (P. o. purus) the song is "a bubbly trill...ju-E, pit'pe'e'e'e'e'a'a'a'e'e'e'e'e'e'pit'pit . .ju-E" and its contact call "a brief ju-E!". In Ecuador the nominate sings "a fast psee-ee-ee-ee-u, tsi-tsi-tsi" and its call is "a doubled ts-rt". In Peru P. o.
ID text from Wikipedia, CC BY-SA 4.0
Variegated Bristle Tyrant
Pogonotriccus poecilotis
The variegated bristle tyrant is about 11.5 cm (4.5 in) long; three individuals weighed between 7 and 9.5 g (0.25 and 0.34 oz). The sexes have the same plumage. Adults have a slate gray crown. Their lores and narrow supercilium are grizzled white. Their ear coverts are grizzled white bisected by a vertical black crescent. Their back and rump are olive green. Their wings are dusky with yellowish edges on the flight feathers. Their wing coverts are dusky with wide tawny buff tips that show as two wing bars. Their tail is dusky olive. Voice: The variegated bristle tyrant's song has been described as "a high, sharp note followed by a rising chippering trill: tsew! tsi-tree'tee'tee'ti'ti'ti". Another author described it as "tsit-tsit-tsit-ts-ts-ts-tseweeeét". Its calls include "a high tsew...a high tsee-tsee and tsi'wit".
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: Marble-faced Bristle Tyrant and Variegated Bristle Tyrant.