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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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Latest feeding records




Last published photographs

Foto
Photography ID: 642722
  Immature

Cañada Rosquín
Santa Fe
Argentina
11/06/2024
Mauro Desch
Foto
Photography ID: 642721
  Immature

Cañada Rosquín
Santa Fe
Argentina
11/06/2024
Mauro Desch
Foto
Photography ID: 637820
  Adult

Ituzaingó
Buenos Aires
Argentina
05/16/2024
Gustavo Marasco
Foto
Photography ID: 620730
  Adult

Cariló
Buenos Aires
Argentina
01/17/2024
Jorge Carlos Trincavelli
Foto
Photography ID: 616786
  Adult

Ciudad de Mendoza
Mendoza
Argentina
12/29/2024
Pablo Moreno
Foto
Photography ID: 615190
  Immature

Necochea
Buenos Aires
Argentina
03/01/2024
Ramon Moller Jensen
Foto
Photography ID: 615187
  Immature

Necochea
Buenos Aires
Argentina
03/01/2024
Ramon Moller Jensen
Foto
Photography ID: 615183
  Immature

Necochea
Buenos Aires
Argentina
03/01/2024
Ramon Moller Jensen
Foto
Photography ID: 614819
  Juvenile

Tandil
Buenos Aires
Argentina
12/16/2024
Edgar Romeo
Foto
Photography ID: 613440
  Juvenile

Avellaneda
Buenos Aires
Argentina
12/02/2024
Diego Trillo



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Last Vocalizations published




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Last Filmings published


Video ID: 6114
  Fledgling

Cafayate
Salta
Argentina
01/05/2024
Viviana Fuentes



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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
222891231/12/2024ArgentinaBuenos AiresCosta de Hudson--costanera, Hudson2Pablo Richter
222802931/12/2024ArgentinaBuenos AiresCalle 63, Hudson1Pablo Richter
222783429/12/2024ArgentinaMendozaParque General San Martin, Ciudad de MendozaPablo Moreno
222724629/12/2024ArgentinaEntre RíosVilla Zorraquin, Concordia1Pablo Bruni
222696929/12/2024ArgentinaEntre RíosConcordia1Jorge La Grotteria
222685029/12/2024ArgentinaEntre RíosConcordia1María Alejandra Sosa
221774528/12/2024ArgentinaEntre RíosParque San Carlos, Concordia1Jorge La Grotteria
221652728/12/2024ArgentinaEntre RíosParque San Carlos, Concordia1María Alejandra Sosa
221550827/12/2024ArgentinaBuenos AiresCamino sin nombrar1Santiago Juan Torres
221510126/12/2024ArgentinaBuenos AiresVía Sin Nombre1Santiago Juan Torres
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.