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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 Concordia

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: 499326
  Adult

Concordia
Entre Ríos
Argentina
06/18/2022
Patricia Beatriz Benitez
Foto
Photography ID: 493816
  Adult

Concordia
Entre Ríos
Argentina
02/10/2022
Jorge La Grotteria
Foto
Photography ID: 418506
  Juvenile

Concordia
Entre Ríos
Argentina
01/02/2019
María Alejandra Sosa
Foto
Photography ID: 410973
  Adult

Concordia
Entre Ríos
Argentina
09/10/2020
Pablo Bruni
Foto
Photography ID: 378244
  Adult

Concordia
Entre Ríos
Argentina
07/31/2019
Maria Belén Dri
Foto
Photography ID: 346532
  Adult

Concordia
Entre Ríos
Argentina
08/17/2019
Diego Carus
Foto
Photography ID: 344195
  Immature

Concordia
Entre Ríos
Argentina
07/30/2019
Diego Carus
Foto
Photography ID: 341279
  Adult

Concordia
Entre Ríos
Argentina
05/26/2019
Eduardo Beltrocco
Foto
Photography ID: 74161
  Adult

Concordia
Entre Ríos
Argentina
12/26/2014
María Alejandra Sosa



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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
244308607/03/202607:47ArgentinaEntre RíosHipólito Yrigoyen 3225, Concordia1Patricia Beatriz Benitez
244003625/02/2026ArgentinaEntre RíosColonia Ayuí, Paso del Águila, Concordia2Patricia Beatriz Benitez
243618419/02/202618:18ArgentinaEntre RíosConcordia1Patricia Beatriz Benitez
242619126/01/202611:22ArgentinaEntre RíosConcordia1María Alejandra Sosa
241990422/01/202618:44ArgentinaEntre RíosConcordia1María Alejandra Sosa
241967222/01/202618:44ArgentinaEntre RíosConcordia1Jorge La Grotteria
240995203/01/202613:00ArgentinaEntre RíosCarriego 3414, Concordia1María Alejandra Sosa
240970303/01/202613:00ArgentinaEntre RíosCarriego 3414, Concordia1Jorge La Grotteria
240919602/01/202610:10ArgentinaEntre RíosParque San Carlos, Concordia1Jorge La Grotteria
240915402/01/202610:24ArgentinaEntre RíosParque San Carlos, Concordia1María Alejandra Sosa
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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