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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: 535488
  Juvenile

Rosario
Santa Fe
Argentina
05/16/2023
Andrés Cecconi
Foto
Photography ID: 535400
  Juvenile

Hernando
Córdoba
Argentina
05/06/2023
Andrés Cecconi
Foto
Photography ID: 472278
  Adult

Partido de Villarino
Buenos Aires
Argentina
11/12/2021
Andrés Cecconi
Foto
Photography ID: 467099
  Juvenile

Las Palmas
Chaco
Argentina
10/08/2021
Andrés Cecconi
Foto
Photography ID: 411396
  Adult

Villa Gobernador Gálvez
Santa Fe
Argentina
09/12/2020
Andrés Cecconi
Foto
Photography ID: 410548
  Juvenile

Funes
Santa Fe
Argentina
08/30/2020
Andrés Cecconi
Foto
Photography ID: 403128
  Adult

Soldini
Santa Fe
Argentina
06/10/2020
Andrés Cecconi
Foto
Photography ID: 383410
  Adult

Tinogasta
Catamarca
Argentina
02/15/2020
Andrés Cecconi
Foto
Photography ID: 348085
  Juvenile

Coronda
Santa Fe
Argentina
08/31/2019
Andrés Cecconi
Foto
Photography ID: 303268
  Juvenile

Parque Nacional Pre-Delta
Entre Ríos
Argentina
12/09/2018
Andrés Cecconi
Foto
Photography ID: 292400
  Adult

Parque Nacional El Palmar
Entre Ríos
Argentina
10/15/2018
Andrés Cecconi
Foto
Photography ID: 267831
  Immature

Rosario
Santa Fe
Argentina
06/02/2018
Andrés Cecconi



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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
176668816/05/2023ArgentinaSanta FeBarrio Belgrano, RosarioAndrés Cecconi
176647506/05/2023ArgentinaCórdobaHernandoAndrés Cecconi
150134112/11/2021ArgentinaBuenos AiresFortin Mercedes, Partido de VillarinoAndrés Cecconi
148392608/10/2021ArgentinaChacoLas PalmasAndrés Cecconi
128857012/09/2020ArgentinaSanta FeReserva Natural de Vgg, Villa Gobernador GálvezAndrés Cecconi
128646930/08/2020ArgentinaSanta FeReserva Ecológica San Jorge, FunesAndrés Cecconi
126811310/06/2020ArgentinaSanta FeCinacinal, SoldiniAndrés Cecconi
119708015/02/2020ArgentinaCatamarcaTinogastaAndrés Cecconi
96564931/08/2019ArgentinaSanta FeCorondaAndrés Cecconi
85225809/12/2018ArgentinaEntre RíosParque Nacional Pre-DeltaAndrés Cecconi
Page 1

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Citation recommended:

EcoRegistros. 2026. Harris´s Hawk (Parabuteo unicinctus) - Species sheet. Acceded from https://www.ecoregistros.org on 14/03/2026.