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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: 653768
  Adult

Curacautín
Región de la Araucanía
Chile
02/22/2025
Fernando Naifleisch
Foto
Photography ID: 545351
  Adult

Vicente López
Buenos Aires
Argentina
08/08/2023
Fernando Naifleisch
Foto
Photography ID: 525451
  Adult

Bahía Blanca
Buenos Aires
Argentina
09/24/2022
Fernando Naifleisch
Foto
Photography ID: 494058
  Adult

Añelo
Neuquén
Argentina
02/03/2022
Fernando Naifleisch
Foto
Photography ID: 452388
  Juvenile

Neuquen Ciudad
Neuquén
Argentina
04/15/2021
Fernando Naifleisch
Foto
Photography ID: 452378
  Adult

Neuquen Ciudad
Neuquén
Argentina
04/23/2021
Fernando Naifleisch
Foto
Photography ID: 341639
  Adult

Chaco Paraguayo
Boquerón
Paraguay
12/25/2017
Fernando Naifleisch
Foto
Photography ID: 336719
  Adult

Bahía Blanca
Buenos Aires
Argentina
06/12/2019
Fernando Naifleisch
Foto
Photography ID: 335254
  Juvenile

Bahía Blanca
Buenos Aires
Argentina
05/20/2018
Fernando Naifleisch



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 Detail of places sorted by number of records








Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
236831622/02/2025ChileRegión de la AraucaníaLo de Palma, CuracautínFernando Naifleisch
181354210/08/2023ArgentinaBuenos AiresReserva Ecológica Vicente LópezFernando Naifleisch
181328808/08/2023ArgentinaBuenos AiresQuinta Trabucco, Vicente LópezFernando Naifleisch
172747324/09/2022ArgentinaBuenos AiresComplejo Uns Palihue, Bahía BlancaFernando Naifleisch
158225703/02/2022ArgentinaNeuquén30 km al oeste de añelo, en el valle del Rio Neuquen, AñeloFernando Naifleisch
142215923/04/2021ArgentinaNeuquénCentro, Neuquen CiudadFernando Naifleisch
142216915/04/2021ArgentinaNeuquénBalneario gatica, Neuquen CiudadFernando Naifleisch
93262912/06/2019ArgentinaBuenos AiresParque Quintana, Bahía BlancaFernando Naifleisch
92922520/05/2018ArgentinaBuenos AiresZona centro, Bahía BlancaFernando Naifleisch
94900725/12/2017ParaguayBoquerónChaco ParaguayoFernando Naifleisch
Page 1

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Citation recommended:

EcoRegistros. 2026. Harris´s Hawk (Parabuteo unicinctus) - Species sheet. Acceded from https://www.ecoregistros.org on 30/03/2026.