There is little information on the breeding biology of Dusky Nightjar. Singing may begin as early as December, but breeding apparently occurs from February or March to April (Stiles and Skutch 1989). Only a single reported nest (Marín and Schmitt 1991) described a nest encountered in mid-March; the nest was on the ground "on a natural terrace" and was partially covered with tall grass and ferns, "with some clearings and a few large trees". The nest was "a small grass-lined depression" with a diameter of ca 10 cm. The clutch was a single egg, white, slighly glossy, and unmarked, with dimensions of 28.65 x 21.62 mm. C. Wood discovered an adult brooding a nestling in April.