Jungle Nightjar (Caprimulgus indicus)
Photographed this beautifully camouflaged Jungle nightjar aka gray-brown nightjar of wooded, open grassy, and scrubby areas.
Intricately patterned, with a golden patch behind the ear and pale tan spots on the wings. Male shows bright white patches near the wingtips and on the edges of the tail that are buffy-brown in females.
Similar Savanna Nightjar is much more densely patterned and lacks the tan wing spots; Savanna also tends to roost on the ground, versus in trees for Jungle Nightjar.
Song is utterly alien-sounding and unique.