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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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Records from General Roca

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: 580783
  Adult

General Roca
Río Negro
Argentina
04/18/2024
Julián Tocce
Foto
Photography ID: 381397
  Juvenile

General Roca
Río Negro
Argentina
02/10/2020
Julián Tocce
Foto
Photography ID: 245159
  Adult

General Roca
Río Negro
Argentina
02/04/2018
Alicia Miller
Foto
Photography ID: 245121
  Adult

General Roca
Río Negro
Argentina
02/04/2018
Julián Tocce
Foto
Photography ID: 92160
  Adult

General Roca
Río Negro
Argentina
04/01/2015
Alicia Miller
Foto
Photography ID: 89436
  Juvenile

General Roca
Río Negro
Argentina
03/18/2015
Franco Cirulo
Foto
Photography ID: 76944
  Immature

General Roca
Río Negro
Argentina
01/15/2015
Julián Tocce
Foto
Photography ID: 74521
  Juvenile

General Roca
Río Negro
Argentina
12/19/2014
Patricio M. Silfeni
Foto
Photography ID: 70405
  Immature

General Roca
Río Negro
Argentina
11/21/2014
Santiago Juan Torres
Foto
Photography ID: 43416
  Juvenile

General Roca
Río Negro
Argentina
03/14/2014
Julián Tocce
Foto
Photography ID: 25131
  Juvenile

General Roca
Río Negro
Argentina
08/14/2013
Julián Tocce



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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
202369618/04/2024ArgentinaRío NegroPuente sobre brazo del Río negro en la ruta 6, General RocaJulián Tocce
206844817/02/2024ArgentinaRío NegroEntre La Española y el Rio Negro, General Roca1Ralph Roberts
197028610/02/2024ArgentinaRío NegroPaso Córdova, General Roca, General Roca1Julián Tocce
198002611/11/2023ArgentinaRío NegroGeneral RocaJorgelina Lopez
191332411/11/2023ArgentinaRío NegroGeneral RocaHernán Tolosa
174215202/04/2023ArgentinaRío NegroPuente sobre brazo del Río negro en la ruta Pcil. 6, General Roca2Julián Tocce
158493723/05/2022ArgentinaRío NegroCiudad, General Roca1Julián Tocce
152777505/01/2022ArgentinaRío NegroPaseo del Bicentenario, General Roca2Julián Tocce
227439228/11/2021ArgentinaRío NegroGeneral Roca1Tiziano Luka Pesci Rubilar
119040710/02/2020ArgentinaRío NegroCiudad - Parque Industrial, General RocaJulián Tocce
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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