Breeding

There is very little information on the reproductive biology of Koepcke's Hermit. Specimens in breeding condition (as indicated by gonad size) have been collected in southern Peru in August and November (specimens in the Field Museum of Natural History). A nest was reported from central Peru in July (although specimens collected in this region in July showed no indications of breeding). This nest was typical of the genus: "a small conical structure located 1.2 m above the ground and attached to the underside of a cyclanth frond near the tip" (Weske and Terborgh 1977); this nest contained two nestlings. The eggs are undescribed, but presumably are white and unmarked, as is typical of hummingbirds.