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Black-chested Buzzard-Eagle

Geranoaetus melanoleucus
(Vieillot, LJP, 1819)
Águila Mora
Águia-chilena

Family: Accipitridae
Order: Accipitriformes
Class: Aves
Phylum / Division: Chordata
Kingdom: Animalia

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Records from Ruta 40

Conservation status according to BirdLife International: Least Concern

Synonyms: Spizaetus melanoleucus.

Subspecies:


Description: It is a large raptor with a robust build and powerful silhouette, featuring broad wings and a relatively short tail. Adult plumage shows a strong contrast between the dark upperparts and pale underparts, with whitish breast and belly finely barred. The head is dark gray, the bill strong and hooked, and the legs long and muscular, well adapted for capturing sizeable prey.

Geographic distribution: It is widely distributed across South America, ranging from southern Colombia and Peru to southernmost Argentina and Chile. In Argentina, it occurs throughout much of the country, from Andean regions to Patagonian plains, demonstrating remarkable ecological flexibility.

Habitat: It occupies a wide variety of open environments, including steppes, grasslands, mountainous areas, plateaus, and semi-arid regions. The species favors landscapes with broad visibility, allowing efficient use of thermal currents and long-distance prey detection.

Feeding: Its diet is carnivorous and diverse, consisting mainly of small to medium-sized mammals, such as rodents and hares, as well as birds, reptiles, and occasionally carrion. It is an efficient predator, capable of hunting both from low flight and elevated perches.

Behavior: The species is generally solitary or found in pairs, performing wide soaring flights that rely heavily on thermals. It becomes territorial during the breeding season and is often seen perched on rocks, poles, or natural elevations, scanning the surroundings.

Nesting: Breeding occurs mainly in spring. It builds large nests, often reused for several years, placed on rocky ledges, cliffs, or tall trees. The clutch usually includes one to two eggs, incubated by both adults, followed by an extended period of parental care.

Conservation status: It is classified as a species of Least Concern, with relatively stable populations throughout most of its range. However, local threats include human persecution, prey depletion, and habitat alteration.


Author of this compilation: EcoRegistros – 16/12/2025





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Last published photographs

Foto
Photography ID: 444971
  Adult

Ruta 40
Neuquén
Argentina
05/04/2021
María Del Carmen Fabeiro
Foto
Photography ID: 152454
  Adult

Ruta 40
Neuquén
Argentina
06/04/2016
Eduardo Cusano
Foto
Photography ID: 107653
  Juvenile

Ruta 40
Neuquén
Argentina
07/27/2015
Eduardo Cusano
Foto
Photography ID: 107553
  Juvenile

Ruta 40
Neuquén
Argentina
07/27/2015
Sergio Cusano
Foto
Photography ID: 107509
  Juvenile

Ruta 40
Neuquén
Argentina
07/27/2015
Eduardo Cusano
Foto
Photography ID: 106558
  Juvenile

Ruta 40
Neuquén
Argentina
07/21/2015
Eduardo Cusano
Foto
Photography ID: 106551
  Adult

Ruta 40
Neuquén
Argentina
07/21/2015
Eduardo Cusano
Foto
Photography ID: 106550
  Juvenile

Ruta 40
Neuquén
Argentina
07/21/2015
Eduardo Cusano



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 Reports


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Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
141288904/05/2021ArgentinaNeuquénRuta 40María Del Carmen Fabeiro
44056104/06/2016ArgentinaNeuquénZona Lago Hermoso, Ruta 40Eduardo Cusano
30986527/07/2015ArgentinaNeuquénKm 2286, Ruta 40Sergio Cusano
30977327/07/2015ArgentinaNeuquénKm 2401, Ruta 40Eduardo Cusano
30701921/07/2015ArgentinaNeuquénRio Quilquihue, Ruta 40Eduardo Cusano
Page 1

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Citation recommended:

EcoRegistros. 2026. Black-chested Buzzard-Eagle (Geranoaetus melanoleucus) - Species sheet. Acceded from https://www.ecoregistros.org on 18/03/2026.