Jerdon's Nightjar
Caprimulgus atripennis
Like other nightjars, it has a wide gape, long wings, soft downy plumage and nocturnal habits. At 26 cm in overall length, it is almost a head's length larger than the Indian nightjar (C. asiaticus), and differs from that species in its barred tail, rufous rear neck, and wing bars. The vermiculations on the crown are fine giving it a nearly uniform shade. The collar is blackish. The male has a white patch on each wing. Otherwise, their cryptic plumage is mainly variegated buff and brown, as typical for the dark tropical woodland nightjars.
ID text from Wikipedia, CC BY-SA 4.0
Large-tailed Nightjar
Caprimulgus macrurus
The large-tailed nightjar measures approximately 31.5 to 33 cm in length. The cryptic plumage and colouration of large-tailed nightjars provide effective camouflage within its natural habitat. Males exhibit distinctive markings, characterized by a pale crown with a dark median stripe. A prominent row of black scapular feathers, bordered by broad buff or whitish-buff fringes, enhances their striking appearance. Additionally, males possess a white throat patch and along, broad brown tail marked with uneven dark bars. Voice: Songs can be heard year-round, but vocal activity may vary depending on breeding activity, population density, and moon phase. The large-tailed nightjar has a distinctive, monotonous song that it uses to assert its territory. Territorial songs are typically given by males, but there are also reports of females giving these songs.
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: Jerdon's Nightjar and Large-tailed Nightjar.