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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: 553261
  Adult

Belgrano
Ciudad Autónoma de Buenos Aires
Argentina
10/25/2023
Diego Carus
Foto
Photography ID: 428942
  Adult

Belgrano
Ciudad Autónoma de Buenos Aires
Argentina
01/13/2021
Diego Carus
Foto
Photography ID: 413133
  Adult

Belgrano
Ciudad Autónoma de Buenos Aires
Argentina
10/01/2020
Diego Carus
Foto
Photography ID: 398348
♂ ♀
  Adult

Belgrano
Ciudad Autónoma de Buenos Aires
Argentina
05/17/2020
Diego Carus
Foto
Photography ID: 393484
  Adult

Belgrano
Ciudad Autónoma de Buenos Aires
Argentina
04/05/2020
Diego Carus
Foto
Photography ID: 391563
  Adult

Belgrano
Ciudad Autónoma de Buenos Aires
Argentina
03/27/2020
Diego Carus
Foto
Photography ID: 391063
  Adult

Belgrano
Ciudad Autónoma de Buenos Aires
Argentina
03/23/2020
Diego Carus
Foto
Photography ID: 384176
  Juvenile

Belgrano
Ciudad Autónoma de Buenos Aires
Argentina
02/21/2020
Diego Carus
Foto
Photography ID: 351653
  Adult

Belgrano
Ciudad Autónoma de Buenos Aires
Argentina
09/20/2019
Diego Carus
Foto
Photography ID: 350129
  Juvenile

Belgrano
Ciudad Autónoma de Buenos Aires
Argentina
09/13/2019
Diego Carus



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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
237804818/10/2025ArgentinaBuenos AiresParque Natural La LucilaDiego Carus
218486026/10/2024ArgentinaBuenos AiresCamino a Tapera de López, Tapera de LópezDiego Carus
215336418/09/2024ArgentinaBuenos AiresParque Natural Municipal Ribera Norte (San Isidro)Diego Carus
194996318/01/2024ArgentinaCiudad Autónoma de Buenos AiresCazadores y Echeverria, BelgranoDiego Carus
194981617/01/2024ArgentinaCiudad Autónoma de Buenos AiresLago de RegatasDiego Carus
194994715/01/2024ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Ciudad Universitaria - Costanera Norte (RECU-CN)Diego Carus
192878210/12/2023ArgentinaBuenos AiresReserva Natural de Uso Múltiple Isla Martín GarcíaDiego Carus
190596605/11/2023ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Ciudad Universitaria - Costanera Norte (RECU-CN)Diego Carus
190274828/10/2023ArgentinaBuenos AiresParque Natural La LucilaDiego Carus
190106225/10/2023ArgentinaCiudad Autónoma de Buenos AiresCazadores y Echeverria, BelgranoDiego Carus
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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