Citron-bellied Attila
Attila citriniventris
The citron-bellied attila is 18 to 18.5 cm (7.1 to 7.3 in) long and weighs 30 to 38 g (1.1 to 1.3 oz). The sexes have the same plumage. Adults have a dark gray crown and face. Their upperparts and tail are mostly rufous-brown with a paler cinnamon-rufous rump. Their wings are dusky. Their throat is grayish white. Their underparts are mostly bright ochraceous that is yellower on the belly; the lower throat and breast have faint dusky streaks. They have a dark reddish brown iris, a grayish maxilla, a gray-tipped pinkish mandible, and gray legs and feet. Voice: The citron-bellied attila's song is "a series of 4–6 loud, rapid and slightly rising whee whistles followed by lower-pitched wu". It also makes "a flat-pitched whee-whee-whee-whee-whee".
ID text from Wikipedia, CC BY-SA 4.0
White-eyed Attila
Attila bolivianus
The white-eyed attila is 19 to 22 cm (7.5 to 8.7 in) long and weighs 40 to 45 g (1.4 to 1.6 oz). The sexes have the same plumage. Adults of the nominate subspecies have a grayish rufous-brown head. Their upperparts are mostly rufous-brown with a bright cinnamon-rufous rump and tail. Their wings are mostly rufous-brown with blackish greater coverts and primaries. Their chin is faintly grayish. Their throat and underparts are mostly cinnamon-rufous that is paler on the belly. Subspecies A. b. nattereri is overall darker than the nominate and has a crown tending to sepia. Voice: One description of the white-eyed attila's song is a "slow, rising series of about 10-15 fluted notes, which level out in the 2nd half". Another is "a slow rising series of rising whistles that usually terminates in a lower note, sounding melancholy: wur wer weer wee WEE WEE wurr".
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: Citron-bellied Attila and White-eyed Attila.