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Parabuteo unicinctus

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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Synonyms: Falco unicinctus.

Subspecies:





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Records from Ciudad de Mendoza

Conservation status according to BirdLife International: Least Concern


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





Geographic distribution


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Species photographs

Last published photographs

Foto
Photography ID: 684436
  Adult

Ciudad de Mendoza
Mendoza
Argentina
04/30/2026
Damián Carnevale
Foto
Photography ID: 616786
  Adult

Ciudad de Mendoza
Mendoza
Argentina
12/29/2024
Pablo Moreno
Foto
Photography ID: 596340
  Adult

Ciudad de Mendoza
Mendoza
Argentina
07/05/2024
Hernán Marianetti
Foto
Photography ID: 588262
  Immature

Ciudad de Mendoza
Mendoza
Argentina
06/21/2024
Damián Carnevale
Foto
Photography ID: 570725
  Immature

Ciudad de Mendoza
Mendoza
Argentina
02/03/2024
Pablo Moreno
Foto
Photography ID: 548349
  Adult

Ciudad de Mendoza
Mendoza
Argentina
08/19/2023
Pablo Moreno
Foto
Photography ID: 347314
  Juvenile

Ciudad de Mendoza
Mendoza
Argentina
07/24/2019
Héctor Bernardo Fernández
Foto
Photography ID: 274460
  Adult

Ciudad de Mendoza
Mendoza
Argentina
01/27/2018
Vicente Piccirillo
Foto
Photography ID: 274451
  Adult

Ciudad de Mendoza
Mendoza
Argentina
01/27/2018
Vicente Piccirillo
Foto
Photography ID: 214807
  Adult

Ciudad de Mendoza
Mendoza
Argentina
07/15/2017
Walter Bustamante
Foto
Photography ID: 171481
  Adult

Ciudad de Mendoza
Mendoza
Argentina
08/06/2013
Miguel A Villarruel
Foto
Photography ID: 171480
  Juvenile

Ciudad de Mendoza
Mendoza
Argentina
10/30/2012
Miguel A Villarruel



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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
249960324/07/2026ArgentinaMendozaParque General San Martín, Ciudad de Mendoza2Pablo Moreno
252670218/07/2026ArgentinaMendozaCerro de la gloria, Ciudad de Mendoza2Victoria Ferrero
249669018/07/2026ArgentinaMendozaParque General San Martín, Ciudad de Mendoza2Pablo Moreno
248499013/06/2026ArgentinaMendozaParque General San Martin, Ciudad de Mendoza1Pablo Moreno
248127130/05/2026ArgentinaMendozaParque General San Martín, Ciudad de Mendoza1Pablo Moreno
247576609/05/2026ArgentinaMendozaParque General San Martín, Ciudad de Mendoza2Pablo Moreno
246390430/04/2026ArgentinaMendozaCerro de la gloria, Ciudad de MendozaDamián Carnevale
245240613/03/2026ArgentinaMendozaParque General San Martín, Ciudad de Mendoza2Pablo Moreno
244295916/02/2026ArgentinaMendozaParque General San Martín, Ciudad de Mendoza1Pablo Moreno
240309420/12/2025ArgentinaMendozaParque General San Martin, Ciudad de Mendoza1Pablo Moreno
Page 1

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Recommended citation
Please use the following reference when citing this species account.
EcoRegistros. 2026. Harris´s Hawk (Parabuteo unicinctus) – Species account. Accessed from www.ecoregistros.org on 14/09/2026.