Unlike other species of the family Cotingidae, the Guianan cock-of-the-rock makes its nest on rocky cliff faces and caves rather than in the trees. The female lays one or two eggs in the nest of mud and plant material, which is attached by saliva to a vertical rock. The female takes care of the building and maintenance of the nest, the incubation of the eggs and the parenting. The male does not participate at all. Eggs typically incubate for 27–28 days. The ideal nesting sites for this species are usually located in a cave or vertical rock face with crevices that provide some shelter and protection from the elements. The nests themselves are solid moldings formed from mud and plant material deposited into the crevices. Due to the solid nature of these nests, they typically persist from one breeding season to the next. Females will make repairs to their nests as a breeding season begins.