The genus Otocorys contains the Horned Larks, three species of which are found at considerable altitudes in the Himalayas. They occur in flocks, and at the breeding-season the males are said to rise in the air, and sing in the same manner as the Sky-Lark.
The Horned Larks have a few lengthened feathers springing from each side of the crown in both sexes. The bill is of median length, and the nostrils are densely covered by plumes ; the wing has nine primaries, of which the first reaches nearly to the tip of the wing; the hind claw is straight and about as long as the hind toe. The sexes are slightly different in colour, and both sexes undergo a considerable variation of plumage according to season, caused by the gradual wearing away of the margins of the feathers in winter and spring.
Key to the Species.
a. Black of the side of the head connected with black of breast………………..O. penicillata, p. 319.
b. Black of the side of the head divided from black of breast by a white band.
a1. Wing about 5; bill at front .55 to .6………………..O. longirostris, p. 320.
b1. Wing about 4.5; bill at front .4 to .45………………..O. elwesi, p. 321.