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Harris´s Hawk

Parabuteo unicinctus
(Temminck, CJ, 1824)
Gavilán Mixto
Gavião-asa-de-telha

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

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Conservation status according to BirdLife International: Least Concern

Synonyms: Falco unicinctus.

Subspecies:


Description: A medium-to-large raptor with an elegant outline, easily recognized by the contrast between its dark brown body, rich rufous wing coverts, and paler legs and tail base. A prominent white tail band is visible both perched and in flight. Its robust head, hooked bluish-gray bill and long yellowish tarsi lend it a powerful and agile appearance, well suited for maneuvering through shrubs and open spaces.

Geographical distribution: Ranges widely across the Americas, from the southwestern United States and Mexico through Central America and extensive areas of South America, including Brazil, Bolivia, Paraguay, Uruguay, Chile, and Argentina. It is most common in arid and semiarid regions with low vegetation, where small prey and elevated perches are readily available.

Habitat: Occupies open or semi-open environments such as scrublands, savannas, dry forests, arid zones, grasslands, and rural landscapes with scattered trees. It tolerates modified habitats when they provide open spaces for hunting and natural or artificial structures for perching.

Diet: Predominantly consumes small mammals, small birds, reptiles and occasionally large insects. A versatile hunter, it combines low flights, short pursuits and ambushes from elevated perches. One of its most distinctive traits is the ability to engage in cooperative hunting, where coordinated group strategies greatly increase capture success.

Behavior: Notably social for a raptor, forming family groups that may include several individuals assisting in territory defense, hunting and raising the young. Its flight is broad and controlled, alternating glides with strong wingbeats. Frequent use of fence posts, branches and other elevated points reflects its constant vigilance behavior.

Breeding: Builds nests in medium to tall trees, on columnar cacti or occasionally on human-made structures. Nests consist of sturdy branches forming a platform reused over multiple seasons. Typical clutches contain two to four eggs, mostly incubated by the female. Juveniles remain with the group for an extended period, learning cooperative hunting before dispersing.

Conservation status: Listed as Least Concern, with stable populations throughout most of its range. Its cooperative behavior and adaptability to open habitats favor its persistence, though localized threats include habitat degradation and persecution.


Author of this compilation: EcoRegistros – 08/12/2025




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Last published photographs

Foto
Photography ID: 610363
  Juvenile

La Plata
Buenos Aires
Argentina
11/21/2024
Diego Varales
Foto
Photography ID: 584703
  Adult

La Plata
Buenos Aires
Argentina
05/20/2024
Diego Varales
Foto
Photography ID: 48827
  Adult

Parque Pereyra Iraola
Buenos Aires
Argentina
03/22/2014
Diego Varales
Foto
Photography ID: 16977
  Adult

Ignacio Correas
Buenos Aires
Argentina
07/07/2012
Diego Varales



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Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
243107704/02/2026UruguayColoniaColonia del Sacramento, ColoniaDiego Varales
241278606/01/2026ArgentinaBuenos AiresLa Plata centro, La Plata2Diego Varales
219837521/11/2024ArgentinaBuenos AiresLa PlataDiego Varales
203638520/05/2024ArgentinaBuenos AiresLa PlataDiego Varales
193682901/01/2024ArgentinaBuenos AiresLa Plata2Diego Varales
154509010/02/2022ArgentinaBuenos AiresPaseo del Bosque, La Plata1Diego Varales
154413208/02/2022ArgentinaBuenos AiresFuerte Barragán, Ensenada1Diego Varales
154344406/02/2022ArgentinaBuenos AiresEnsenada1Diego Varales
153202110/01/2022ArgentinaBuenos AiresPlaza moreno, La Plata2Diego Varales
136846009/02/2021ArgentinaBuenos AiresLos 2 vagones, Magdalena1Diego Varales
Page 1

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Citation recommended:

EcoRegistros. 2026. Harris´s Hawk (Parabuteo unicinctus) - Species sheet. Acceded from https://www.ecoregistros.org on 16/03/2026.