Grey Nightjar
Caprimulgus jotaka
The grey nightjar is a medium-sized nightjar with a large head, large eye, long tail, weak bill and short legs. The plumage is mottled, very similar to the Himalayas subspecies of jungle nightjar (C. indicus harzarae). The forehead, crown, and nape are covered with small, intricate grayish-white and dark brown vermiculated patterns mixed with black longitudinal streaks, with the central black stripe on the crown being particularly prominent. The feathers on the nape have pale brown spots at the tips. Voice: The vocalization of nightjars is an important aspect to distinguish them in field. The grey nightjar song is a series of hollow byuck notes lasting 2–4 seconds and repeated at short intervals, like the firing of a cartoon laser gun (click to hear).
ID text from Wikipedia, CC BY-SA 4.0
Rufous-cheeked Nightjar
Caprimulgus rufigena
Similar to that of the fiery-necked nightjar, the rufous-cheeked nightjar is 23–24 cm tall with a male weighing 48-65g and a female weighing 46-66g, and has a typical nightjar body shape. Paler than the fiery-necked nightjar, the rufous-necked nightjar has a dark brown body decorated with rufous-coloured spots and a less distinct rufous-coloured collar. Like most nightjars, it has a short, slightly curved black beak. A male has white marks on the primaries and the tail corner, while in females it is buff. Voice: The rufous-cheeked nightjar has two main flight calls. One is an upbeat "Q! Q! Q! Q!" and the other is a harsh "oar! oar! oar!" they are sung with slight pauses. The nightjar also has a territoriality song, it starts with preliminary coughs "Q-whoop...Q-whoop...Q-whoop" with the "Q" in the cough being a softer version of the Q! flight call. Afterwards, the nightjar starts churring at 31 and 32–37.
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: Grey Nightjar and Rufous-cheeked Nightjar.