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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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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: 668203
  Juvenile

Cno. s154
Córdoba
Argentina
01/18/2026
Susana Gomez
Foto
Photography ID: 660899
  Immature

Camino a Cuchi Corral
Córdoba
Argentina
11/27/2025
Susana Gomez
Foto
Photography ID: 659441
  Juvenile

Alvear
Corrientes
Argentina
11/13/2025
Susana Gomez
Foto
Photography ID: 582274
  Adult

Sierras Chicas
Córdoba
Argentina
04/14/2024
Susana Gomez
Foto
Photography ID: 552243
  Juvenile

Lobería
Buenos Aires
Argentina
10/14/2023
Susana Gomez
Foto
Photography ID: 536399
 
Lobería
Buenos Aires
Argentina
05/28/2023
Susana Gomez
Foto
Photography ID: 533618
 
Ushuaia
Tierra del Fuego
Argentina
04/28/2023
Susana Gomez
Foto
Photography ID: 531268
  Adult

Altas cumbres
Córdoba
Argentina
03/02/2023
Susana Gomez
Foto
Photography ID: 507190
  Immature

Lobería
Buenos Aires
Argentina
09/13/2022
Susana Gomez
Foto
Photography ID: 484150
  Adult

Cercanías Pilo Lil
Neuquén
Argentina
02/08/2022
Susana Gomez



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 Reports


 Detail of places sorted by number of records








Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
241802118/01/2026ArgentinaCórdobaCno. s154Susana Gomez
239255027/11/2025ArgentinaCórdobaCamino a Cuchi CorralSusana Gomez
238544213/11/2025ArgentinaCorrientesRuta 36, AlvearSusana Gomez
238541113/11/2025ArgentinaCorrientesRuta Provincial 36Susana Gomez
202869314/04/2024ArgentinaCórdobaSierras ChicasSusana Gomez
189687214/10/2023ArgentinaBuenos AiresSierras de Lobería. Puerta del diablo, LoberíaSusana Gomez
179231010/07/2023ArgentinaLa PampaCercania del parque Provincial Pedro LuroSusana Gomez
177139228/05/2023ArgentinaBuenos AiresCorredor Biológico Camino de los Curros, Lobería2Susana Gomez
175909228/04/2023ArgentinaTierra del FuegoUshuaia, UshuaiaSusana Gomez
174701206/04/2023ArgentinaBuenos AiresCorredor Biológico Camino de los Curros, Lobería1Susana Gomez
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 23/03/2026.