Asian House Martin vs Nepal House Martin

Asian House Martin

Delichon dasypus

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The adult Asian house martin of the nominate subspecies is 12 cm (4.7 in) long, dark steel blue above with a contrasting white rump, grey-washed white underparts, and a slightly forked tail. The tail and upperwings are brownish-black, and the underwings are grey-brown. The legs and feet are brownish-pink and covered with white feathers, the eyes are brown, and the bill is black. There are few differences in appearance between the sexes, although the male is somewhat whiter below than the female, especially in fresh plumage.

ID text from Wikipedia, CC BY-SA 4.0

Photo: Saryu Mae 前 朝琉 · CC BY 4.0

Nepal House Martin

Delichon nipalense

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The adult Nepal house martin is 13 cm (5.1 in) long, mainly blue-black above and white below. It has a contrasting pure white rump, the tail and upperwings are brownish-black, and the underwings are grey-brown. The legs and feet are brownish-pink and covered with white feathers, the eyes are brown, and the bill is black. The chin is black but the extent varies clinally. In the northeast of the range, birds of the race D. n. cuttingi have black on the whole of the throat and the uppermost breast, but further west or south the black increasingly becomes restricted to the chin.

ID text from Wikipedia, CC BY-SA 4.0

Photo: Tristan Jobin · CC BY 4.0

Photos and recordings are credited to their authors under the licence shown. Full profiles: Asian House Martin and Nepal House Martin.