Little information. In Panama, chicks were recorded in February, young with feathers in July and fledglings in August. Young have a large dependency period; consequently, it seems that parents nest only every third year (in Panamá and Yucatan Peninsula) (Rangel-Salazar and Enriquez-Rocha 1993).
One nest was 110 cm wide, and located 17 m above the ground. Other nests have been spotted in tall trees and palms (e.g., Roystonea) (Bierregaard 1994). In the Yucatán Peninsula, a nest was found in a 23 m tall mahogany tree (Swietenia microphylla) at 17 m above the ground. The diameter of this nest was 70 cm; nest materials included zapote (Minilkara zapote), txalam (Lysiloma latisiliquia) and a vine (Styzophyllum riparium) (Rangel-Salazar and Enriquez-Rocha 1993).
Black Hawk-Eagle nestlings stand up in the first 5 weeks and flap in place in the 4th week; sometimes, at the 4th week, chicks move from the nest to adjacent branches (Whitacre et al. 2002). At the 8th week, chicks were able to feed themselves (Whitacre et al. 2002).