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Buteogallus meridionalis

Savanna Hawk


Buteogallus meridionalis

(Latham, J, 1790)
Aguilucho Colorado
Gaviao-caboclo

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

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Other common names: Gavilán Sabanero, Gavilán Cangrejero Colorado, Busardo Sabanero.

Synonyms: Heterospizias meridionalis, Falco meridionalis.





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Records from Esteros del Iberá

Conservation status according to BirdLife International: Least Concern


Description


Exhibits a slender silhouette and an elegant posture, characterized as a medium-to-large raptor classified scientifically as Buteogallus meridionalis, with a body length ranging from 18 to 24 inches (46 to 61 centimeters) and a wingspan that can reach up to 47 inches (120 centimeters). The adult plumage features a striking rufous or cinnamon-orange coloration across most of the body, adorned with delicate, dark gray or black transverse barring on the breast and abdomen. The wings are broad and rounded, displaying black primary feathers at their tips, which creates a sharp chromatic contrast in flight. The tail is relatively short and black, interrupted by a highly conspicuous white central band and a white terminal tip. Its lower limbs are remarkably long, featherless, and a bright yellow, specialized for walking and running on the ground. The eyes have a light brown to yellowish iris, complemented by a yellow cere and a sharp, hooked black bill.

Geographical distribution: Distributed widely across the Neotropical region, covering a vast territorial range that begins in southern Central America, specifically in Panama, and extends continuously throughout South America. Its presence is highly common in countries such as Colombia, Venezuela (especially in the Llanos region), Trinidad and Tobago, Guyana, Suriname, and French Guiana. To the south, its distribution encompasses almost the entirety of Brazil (excluding the densely forested Amazon Basin), extending through Bolivia, Paraguay, northern and central Argentina, and reaching the northernmost borders of Uruguay.

Habitat: Prefers open and semi-open ecosystems, showing a strong predilection for flooded savannas, wet grasslands, alluvial plains, and the margins of marshes and estuaries. It is a highly adaptable species that coexists well with human activities, frequently spotted in agricultural fields, livestock pastures, and areas with low secondary vegetation. It strictly avoids dense forest formations, such as continuous tropical rainforests, requiring the presence of scattered trees, power poles, or fence posts to serve as vital hunting perches.

Feeding: Possesses a highly opportunistic and generalist diet, adapting its hunting strategy to seasonal resource availability. It actively feeds on a wide variety of prey captured directly on the ground, including small mammals like rodents, reptiles such as lizards and medium-sized snakes, anfíbians, freshwater crabs, and a massive quantity of large invertebrates, notably grasshoppers, beetles, and caterpillars. Occasionally, it supplements its diet with small fish trapped in drying temporary pools, as well as young birds that fall from their nests.

Behavior: Typically observed singly or in territorial pairs, perched upright on wooden fence posts, low branches, or mounds of earth along roadsides. It is an excellent soaring flyer that utilizes thermal currents to gain altitude, performing slow, majestic patrol flights. One of its most fascinating and iconic behaviors is its attraction to grass fires and agricultural burns; this raptor actively flies toward the fire fronts to efficiently capture fleeing animals escaping the flames. It emits a highly characteristic call, described as a loud, high-pitched, and harsh scream, used to defend territory and communicate with its mate.

Nesting: The breeding season is generally associated with the transition between the dry season and the onset of the rains. It constructs a voluminous platform nest using dry twigs and sticks, lining the interior with green leaves and soft grasses for cushioning. This structure is usually placed at variable heights, typically between 16 and 50 feet (5 to 15 meters), preferably in the crown of palm trees or scattered trees with dense foliage to guarantee protection from predators. The female usually lays a single white or bluish-white egg, occasionally decorated with faint brown speckles. Both parents actively participate in the incubation process, which lasts approximately 35 to 40 days, as well as in the subsequent feeding and defense of the chick.

Conservation status: Listed as a species of Least Concern (LC) on the IUCN Red List of Threatened Species. Its global population is considered stable and even expanding in certain regions, as the clearing of primary forests for cattle ranching and agricultural expansion has created new suitable habitats for colonization. It faces no critical large-scale threats, though agrochemical contamination in intensive farming zones represents a potential risk to its reproductive health.



Compilation and publication: EcoRegistros – 19/07/2026




Geographic distribution


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Species photographs

Last published photographs

Foto
Photography ID: 605670
  Immature

Esteros del Iberá
Corrientes
Argentina
10/11/2024
Héctor Bernardo Fernández
Foto
Photography ID: 552275
  Adult

Esteros del Iberá
Corrientes
Argentina
09/19/2023
Francisco Encinosa
Foto
Photography ID: 550619
  Adult

Esteros del Iberá
Corrientes
Argentina
08/30/2023
Eduardo Nadal
Foto
Photography ID: 525550
  Adult

Esteros del Iberá
Corrientes
Argentina
06/25/2009
Ramon Moller Jensen
Foto
Photography ID: 442561
  Adult

Esteros del Iberá
Corrientes
Argentina
07/02/2019
Hugo Alberto Valderrey
Foto
Photography ID: 385716
  Adult

Esteros del Iberá
Corrientes
Argentina
02/23/2020
Pablo Alberto Re
Foto
Photography ID: 356157
  Adult

Esteros del Iberá
Corrientes
Argentina
10/14/2018
Daniel Osvaldo Fernández
Foto
Photography ID: 319716
  Adult

Esteros del Iberá
Corrientes
Argentina
09/08/2018
Sebastián Otero
Foto
Photography ID: 293678
  Adult

Esteros del Iberá
Corrientes
Argentina
10/15/2018
Pablo Eguia



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Species vocalizations

Last vocalizations published



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Species videos

Last filmings published


Video ID: 3900
  Adult

Esteros del Iberá
Corrientes
Argentina
07/27/2016
Ruben Russo



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Species reports



 Detail of places sorted by number of records








Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
252710212/09/2026ArgentinaCorrientesParaje Uguaí, Esteros del Iberá1Diego Oscar
217754611/10/2024ArgentinaCorrientesPortal san nicolas, Esteros del IberáHéctor Bernardo Fernández
213634731/03/2024ArgentinaCorrientesEsteros del IberáLeonardo Caballero
189691219/09/2023ArgentinaCorrientesRuta 22, Esteros del IberáFrancisco Encinosa
189249230/08/2023ArgentinaCorrientesRuta 40, Esteros del IberáEduardo Nadal
173837722/03/2023ArgentinaCorrientesCamba Trapo, Esteros del Iberá1Diego Oscar
160354827/10/2021ArgentinaCorrientesCamino a portal galarza, Esteros del IberáPatricia Gabriela Mancilla Iglesias
160354627/10/2021ArgentinaCorrientesCamino a portal galarza, Esteros del IberáPatricia Gabriela Mancilla Iglesias
160350827/10/2021ArgentinaCorrientesCamino a portal galarza, Esteros del IberáPatricia Gabriela Mancilla Iglesias
133925306/12/2020ArgentinaCorrientesNavegación Rio Miriñay, Esteros del Iberá1Rodolfo Seró
Page 1

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Recommended citation
Please use the following reference when citing this species account.
EcoRegistros. 2026. Savanna Hawk (Buteogallus meridionalis) – Species account. Accessed from www.ecoregistros.org on 24/09/2026.