Little information, except for the brief observations of Skutch (1966) and of Rowley (1984). Rowley (1984) reported nests from Oaxaca, Mexico in May and June, and Binford (1989) reported a "prejuvenile" from that region from November; Binford (1989) further noted that in Oaxaca the Lesser Ground-Cuckoo breeds during the local rainy season. Skutch found an active nest in Guatemala in July (Skutch 1966); breeding in Costa Rica is from February-May (Stiles and Skutch 1989).
The nest is a shallow bowl of sticks (Skutch 1966) or of "dried rachises of compound bi-pinnate ovate leaves of the eardrop tree (Enterolobium cyclocarpum)" (Rowley 1984). All known nests have been placed on the ground (Skutch 1966, Rowley 1984). The clutch is two; the eggs are white and unmarked (Skutch 1966, Rowley 1984). Both sexes incubate (Skutch 1966). There is no information on the length of incubation or of the nestling period.