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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: 379492
  Adult

Lobos
Buenos Aires
Argentina
01/03/2020
Andres Espindola
Foto
Photography ID: 254456
  Immature

Cerro Negro
Catamarca
Argentina
03/08/2018
Andres Espindola
Foto
Photography ID: 191585
  Juvenile

Villa del Rosario
Córdoba
Argentina
01/16/2017
Andres Espindola
Foto
Photography ID: 113484
  Adult

Guatraché
La Pampa
Argentina
09/06/2015
Andres Espindola
Foto
Photography ID: 113380
  Adult

Guatraché
La Pampa
Argentina
09/05/2015
Andres Espindola
Foto
Photography ID: 106980
  Adult

Chepes
La Rioja
Argentina
07/11/2015
Andres Espindola



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 Reports


 Detail of places sorted by number of records








Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
121546710/03/2020ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Costanera Sur (RECS)1Andres Espindola
116674003/01/2020ArgentinaBuenos AiresLobos3Andres Espindola
71463908/03/2018ArgentinaCatamarcaCerro Negro2Andres Espindola
52916816/01/2017ArgentinaCórdobaLaguna sobre ruta a matorrales, Villa del Rosario2Andres Espindola
46523415/08/2016ArgentinaCórdobaPicada cortafuego, Parque Provincial Chancaní1Andres Espindola
40027508/02/2016ArgentinaCórdobaSalinas Grandes, Ruta 60, departamento de Tulumba4Andres Espindola
37802320/12/2015ArgentinaCórdobaPicada central, Parque Provincial Chancaní2Andres Espindola
32644406/09/2015ArgentinaLa PampaReserva Natural Laguna Guatraché, GuatrachéAndres Espindola
32626005/09/2015ArgentinaLa PampaReserva Natural Laguna Guatraché, GuatrachéAndres Espindola
30424811/07/2015ArgentinaLa RiojaChepesAndres Espindola
Page 1

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Citation recommended:

EcoRegistros. 2026. Harris´s Hawk (Parabuteo unicinctus) - Species sheet. Acceded from https://www.ecoregistros.org on 25/03/2026.