Black-capped Swallow
Atticora pileata
The black-capped swallow is about 11.5 to 13.5 cm (4.5 to 5.3 in) long and weighs about 12 g (0.42 oz). The sexes have the same plumage. Adults have a glossy black head with brown-speckled white cheeks and throat. Their back is sepia brown, their rump a darker brown, and their uppertail coverts dark sooty brown. Their tail longish, forked, and dull sooty black. Their wing's lesser coverts are black to brownish black, their secondary and inner greater coverts are dark grayish brown, and their flight feathers brownish black. Voice: The black-capped swallow's calls "include a buzzy electric pzzzzzeeet! and a more liquid pweeet-pweeet".
ID text from Wikipedia, CC BY-SA 4.0
White-thighed Swallow
Atticora tibialis
The white-thighed swallow averages about 12 cm (4.7 in) long and weighs 8.5 to 14 g (0.30 to 0.49 oz). The sexes have the same plumage. Adults of the nominate subspecies A. t. tibialis have a brownish black head with a slight green sheen, black lores, and gray-brown cheeks and throat. Their back is brownish black with a slight green sheen and their rump gray-brown. Their tail is slightly forked and brownish black. Their wings are mostly brownish black with slightly lighter tips on the greater coverts and tertials. Voice: The white-thighed swallow's calls include "a thin, high-pitched tsee-tit and a chit-it, chee-dee-dit?. While foraging they make a "constant, soft zeet-zeet call.
ID text from Wikipedia, CC BY-SA 4.0
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Black-capped Swallow and White-thighed Swallow.