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Parabuteo unicinctus

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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Synonyms: Falco unicinctus.

Subspecies:





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Conservation status according to BirdLife International: Least Concern


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





Geographic distribution


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Species photographs

Last published photographs

Foto
Photography ID: 582743
 
El Tío
Córdoba
Argentina
05/04/2024
Hugo Caverzasi
Foto
Photography ID: 577705
 
Lago Colbùn
Región del Maule
Chile
03/18/2024
Hugo Caverzasi
Foto
Photography ID: 439559
 
Las Varillas
Córdoba
Argentina
04/03/2021
Hugo Caverzasi
Foto
Photography ID: 401302
  Juvenile

Villa San Esteban
Córdoba
Argentina
06/18/2020
Hugo Caverzasi
Foto
Photography ID: 392009
 
Las Varillas
Córdoba
Argentina
03/28/2020
Hugo Caverzasi
Foto
Photography ID: 277335
 
Monteagudo
Tucumán
Argentina
07/14/2018
Hugo Caverzasi
Foto
Photography ID: 254512
  Juvenile

Las Lajas
Neuquén
Argentina
03/06/2018
Hugo Caverzasi
Foto
Photography ID: 206552
  Juvenile

Las Varillas
Córdoba
Argentina
06/17/2017
Hugo Caverzasi
Foto
Photography ID: 202059
  Juvenile

Villa San Esteban
Córdoba
Argentina
05/06/2017
Hugo Caverzasi
Foto
Photography ID: 177523
  Juvenile

Parque Provincial Chancaní
Córdoba
Argentina
11/27/2016
Hugo Caverzasi



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Species vocalizations

Last vocalizations published


Audio playerUserDateCountryProvincePlaceSexLife stageIt was observedDetails
Hugo Caverzasi04/11/2020ArgentinaCórdobaCampo E. Alvarez, Las VarillasN/AN/ANoNo



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Species reports



 Detail of places sorted by number of records








Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
250111923/07/2026ParaguayBoquerónCamino aledaño2, Flor del Chaco1Hugo Caverzasi
250111723/07/2026ParaguayBoquerónCamino aledaño, Flor del Chaco1Hugo Caverzasi
248424513/06/2026ArgentinaCórdobaCampo E. Alvarez, Las VarillasHugo Caverzasi
245253425/03/2026ArgentinaNeuquénJardin botánico, Plottier1Hugo Caverzasi
245265223/03/2026ArgentinaNeuquénParaje La Angostura, Villa Pehuenia1Hugo Caverzasi
216038618/09/2024BrazilMato GrossoPe Encontro das Aguas, Pantanal1Hugo Caverzasi
213518817/08/2024ArgentinaCórdobaGauchito Gil, Las Varillas2Hugo Caverzasi
203451518/05/2024ArgentinaCórdobaIntendente I. Calvo Alvarez 270, Las Varillas30Hugo Caverzasi
203292911/05/2024ArgentinaCórdobaCampo Rueda, Las DeliciasHugo Caverzasi
203054204/05/2024ArgentinaCórdobaCampo Rueda, El Tío2Hugo Caverzasi
Page 1

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Recommended citation
Please use the following reference when citing this species account.
EcoRegistros. 2026. Harris´s Hawk (Parabuteo unicinctus) – Species account. Accessed from www.ecoregistros.org on 27/09/2026.