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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 Formosa

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




Nuevas localidades para el Águila Mora (Geranoaetus melanoleucus) en el altiplano de La Paz y Oruro, Bolivia y área circumlacustre del lago Titicaca (Bolivia y Perú)
EcoRegistros Revista Nº 3 - Article Nº 9
Publish by: Enrique Richard
Published date: 09/30/2013 16:32



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Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
186930813/05/2023ArgentinaFormosa1227 Ruta Nacional 81, Formosa2Fabricio Candia
186930919/11/2022ArgentinaFormosaCañada 12, Formosa2Fabricio Candia
186931725/01/2020ArgentinaFormosaRuta Nacional 11, Formosa2Fabricio Candia
186931619/10/2019ArgentinaFormosaRuta 11 (antes del ingreso a Ruta 2), Formosa1Fabricio Candia
158867620/06/2019ArgentinaFormosaRuta Nacional 11, FormosaSilvina Collado
158784320/06/2019ArgentinaFormosaRuta Nacional 11, FormosaJulian Uriel Collado
186932004/05/2019ArgentinaFormosaRuta Nacional 11, Formosa1Fabricio Candia
186931906/10/2018ArgentinaFormosaRuta Nacional 11, Formosa5Fabricio Candia
186931822/07/2018ArgentinaFormosaRuta Nacional 11, Formosa1Fabricio Candia
186931521/02/2018ArgentinaFormosaRiacho Monte Lindo R11, Formosa1Fabricio Candia
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 09/03/2026.










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