Black-and-Chestnut Eagle (Spizaetus isidori)

Order: Accipitriformes | Family: Accipitridae | IUCN Status: Least Concern

Age: Adult |Sex: Unknown | Loc. Andes of Ecuador 

Age: Adult | Sex: Unknown | Loc. Cusco, Peru

Age: Juvenile | Sex: Unknown | Loc. Andes Peru

Age: Juvenile | Sex: Unknown | Loc. Andes of Colombia

Identification & Behavior: ~68.5 cm (27 in). The adult Black-and-Chestnut Eagle is mostly black with a chestnut breast and belly. The primary flight feathers are pale. The tail is also pale with a black terminal band readily seen in flight. The juvenile is pale with rusty sides of the neck and a back in various shades of gray. It soars over montane forest where it overlaps with the Solitary Eagle. The juvenile is similar to the juvenile Ornate Hawk-Eagle, which occurs at lower elevations.

Status: The Black-and-Chestnut Eagle is rare at elevations ranging between 1700 – 3500m. It also occurs in Co, Ec, and Bo.

Name in Spanish: Aguila Negra y Castaña.

Sub-species: Black-and-Chestnut Eagle (Spizaetus isidori), Des Murs 1845.

Meaning of Name: Spizaetus: Gr. spizas= falcon and aetos= eagle. isidori: in honor of French zoologist and author Isidore Geoffroy Saint-Hilaire (1806-1861).

See more of the Family Accipitridae   peru aves

Distribution Map
black-and-chestnut eagleVoice


    • Species range based on: Schulenberg, T. S., D. F. Stotz, and L. Rico. 2006. Distribution maps of the birds of Peru, version 1.0. Environment, Culture & Conservation (ECCo). The Field Museum. on 01/01/2015.