Don't want to see ads? Sign up...





Species icon
Black-chested Buzzard-Eagle

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

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

 Request change
Filters

Records from Tandil

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





🌿 EcoRegistros Revista - Related Articles





Loading map...




Last published photographs

Foto
Photography ID: 675024
  Adult

Tandil
Buenos Aires
Argentina
01/16/2026
Liliana Rubilar Puerta
Foto
Photography ID: 621351
  Juvenile

Tandil
Buenos Aires
Argentina
02/05/2025
Filippo Riffaldi
Foto
Photography ID: 594762
  Adult

Tandil
Buenos Aires
Argentina
05/18/2024
Liliana Rubilar Puerta
Foto
Photography ID: 594761
  Adult

Tandil
Buenos Aires
Argentina
05/18/2024
Liliana Rubilar Puerta
Foto
Photography ID: 594760
  Juvenile

Tandil
Buenos Aires
Argentina
05/10/2024
Liliana Rubilar Puerta
Foto
Photography ID: 587805
  Immature

Tandil
Buenos Aires
Argentina
06/15/2024
Fernando Rasmussen
Foto
Photography ID: 587803
  Adult

Tandil
Buenos Aires
Argentina
06/15/2024
Fernando Rasmussen
Foto
Photography ID: 544031
 
Tandil
Buenos Aires
Argentina
11/13/2010
Fernando Rasmussen
Foto
Photography ID: 544030
  Adult

Tandil
Buenos Aires
Argentina
11/13/2010
Fernando Rasmussen
Foto
Photography ID: 532211
  Squab

Tandil
Buenos Aires
Argentina
12/04/2010
Fernando Rasmussen
Foto
Photography ID: 532208
  Juvenile

Tandil
Buenos Aires
Argentina
06/01/2013
Fernando Rasmussen
Foto
Photography ID: 532205
  Juvenile

Tandil
Buenos Aires
Argentina
06/14/2009
Fernando Rasmussen



 View all photographs of the species




 Add a photography of this species





Last Vocalizations published




 Add an audio of this species





Last Filmings published




 Add a film of this species





 Reports


 Detail of places sorted by number of records








Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
243737822/02/202609:48ArgentinaBuenos AiresTandil1Santiago Juan Torres
242439828/01/2026ArgentinaBuenos AiresRuta Prov. 74 km 235, Tandil1Liliana Rubilar Puerta
241706316/01/2026ArgentinaBuenos AiresCamino rural Gardey, Tandil2Liliana Rubilar Puerta
234884028/08/202517:01ArgentinaBuenos AiresTandil2Santiago Juan Torres
230685818/06/202513:25ArgentinaBuenos AiresTandil1Santiago Juan Torres
229303928/05/202513:14ArgentinaBuenos AiresRuta Provincial 74 212, Tandil1Santiago Juan Torres
228702211/05/202512:29ArgentinaBuenos AiresTandil2Santiago Juan Torres
228701811/05/202512:02ArgentinaBuenos AiresTandil1Santiago Juan Torres
228697210/05/202516:19ArgentinaBuenos AiresTandil1Santiago Juan Torres
228702508/05/202514:30ArgentinaBuenos AiresTandilSantiago Juan Torres
Page 1

 Add a record of this species

Citation recommended:

EcoRegistros. 2026. Black-chested Buzzard-Eagle (Geranoaetus melanoleucus) - Species sheet. Acceded from https://www.ecoregistros.org on 16/03/2026.