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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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Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
205146829/06/2024ArgentinaBuenos AiresArroyo Raggio, Vicente López1Virginia Bonifacio
177548304/06/2023ArgentinaCiudad Autónoma de Buenos AiresLago de Regatas2Virginia Bonifacio
177216820/05/2023ArgentinaBuenos AiresJardín Botánico A. E. Ragonese - Inta, Ituzaingó4Virginia Bonifacio
131936222/11/2020ArgentinaBuenos AiresPaso 1737, Ingeniero Maschwitz4Virginia Bonifacio
122948522/02/2020ArgentinaBuenos AiresReserva Ecológica Vicente López2Virginia Bonifacio
122943501/02/2020ArgentinaBuenos AiresReserva Ecológica Vicente López1Virginia Bonifacio
115350121/12/2019ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Costanera Sur (RECS)1Virginia Bonifacio
93767120/01/2019ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Costanera Sur (RECS)1Virginia Bonifacio
86273224/11/2018ArgentinaBuenos AiresParque Natural La Lucila1Virginia Bonifacio
86265518/11/2018ArgentinaBuenos AiresPredio radio ciudad, Dique Luján1Virginia Bonifacio
Page 1

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Citation recommended:

EcoRegistros. 2026. Harris´s Hawk (Parabuteo unicinctus) - Species sheet. Acceded from https://www.ecoregistros.org on 09/03/2026.










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