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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 Ushuaia

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: 562212
  Immature

Ushuaia
Tierra del Fuego
Argentina
12/09/2023
Federico J. Villegas
Foto
Photography ID: 533618
 
Ushuaia
Tierra del Fuego
Argentina
04/28/2023
Susana Gomez
Foto
Photography ID: 533447
  Adult

Ushuaia
Tierra del Fuego
Argentina
04/28/2023
Francisco Encinosa
Foto
Photography ID: 479007
  Juvenile

Ushuaia
Tierra del Fuego
Argentina
12/22/2021
Max Uranga
Foto
Photography ID: 390674
  Adult

Ushuaia
Tierra del Fuego
Argentina
03/14/2020
Maria Victoria Di Stasio
Foto
Photography ID: 390347
  Juvenile

Ushuaia
Tierra del Fuego
Argentina
03/14/2020
María Del Carmen Fabeiro
Foto
Photography ID: 382552
  Adult

Ushuaia
Tierra del Fuego
Argentina
01/07/2020
Guillermo Marcaida
Foto
Photography ID: 382110
  Adult

Ushuaia
Tierra del Fuego
Argentina
01/07/2020
Elsa Longo
Foto
Photography ID: 236667
  Juvenile

Ushuaia
Tierra del Fuego
Argentina
12/13/2017
Jorge La Grotteria
Foto
Photography ID: 227980
  Adult

Ushuaia
Tierra del Fuego
Argentina
11/11/2017
Jorge Schlemmer
Foto
Photography ID: 215809
 
Ushuaia
Tierra del Fuego
Argentina
02/24/2017
Rodolfo Capdevielle



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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
239223709/11/2025ArgentinaTierra del FuegoUshuaia--relleno sanitario, Ushuaia4Diego Oscar
232191208/07/2025ArgentinaTierra del FuegoArbustal cercano al Relleno Sanitario, Ushuaia1Lionel Medina
231376904/07/2025ArgentinaTierra del FuegoCasa, Ushuaia4Lionel Medina
231340103/07/2025ArgentinaTierra del FuegoUntdf, Ushuaia1Lionel Medina
231339002/07/2025ArgentinaTierra del FuegoFaldeo Monte Susana, Ushuaia1Lionel Medina
227165304/04/2025ArgentinaTierra del FuegoPN Tierra del Fuego, Ushuaia3Faustino Hollmann
227158602/04/2025ArgentinaTierra del FuegoValle de la Tata, Ushuaia1Faustino Hollmann
227157402/04/2025ArgentinaTierra del FuegoArbustal cercano al Relleno Sanitario, Ushuaia3Faustino Hollmann
212509321/07/2024ArgentinaTierra del FuegoUshuaia--Barco Hundido, UshuaiaJuan Martín Filipigh
212007421/07/2024ArgentinaTierra del FuegoUshuaia--Barco Hundido, UshuaiaBc_pajareritos Alectrurus
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 16/03/2026.