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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




Number of Photography: 2133

Foto
Photography ID: 677203
  Adult

Avellaneda
Buenos Aires
Argentina
01/02/2026
Diego Trillo
Foto
Photography ID: 677010
  Adult

Mar Chiquita
Buenos Aires
Argentina
03/07/2026
Celina Emilia Iratchet
Foto
Photography ID: 676080
 
Tandil
Buenos Aires
Argentina
01/22/2026
Liliana Rubilar Puerta
Foto
Photography ID: 676033
  Immature

Godoy Cruz
Mendoza
Argentina
03/18/2013
Manuel Godoy
Foto
Photography ID: 675267
  Juvenile

Reserva Natural del Pilar
Buenos Aires
Argentina
02/26/2026
Dolores Fernandez
Foto
Photography ID: 674749
  Adult

Bahía Blanca
Buenos Aires
Argentina
02/23/2026
Lucas Martín
Foto
Photography ID: 673943
  Immature

Santa Rosa del Conlara
San Luis
Argentina
01/25/2026
Manuel Godoy
Foto
Photography ID: 673890
  Adult

Cipolletti
Río Negro
Argentina
02/13/2026
Fernanda Ferrari
Foto
Photography ID: 673732
  Adult

Departamento Utracan
La Pampa
Argentina
02/17/2026
Hugo Alberto Valderrey



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Number of Recorded Vocalizations: 19



Audio playerUserDateCountryProvincePlaceSexLife stageIt was observedDetails
René Fernando Bilbao01/28/2026ArgentinaBuenos AiresMar de CoboN/AN/AYesNo
René Fernando Bilbao01/28/2026ArgentinaBuenos AiresMar de CoboN/AN/AYesNo
Viviana Fuentes02/01/2026ArgentinaCatamarcaEntre santa maria y amaicha del valleSanta MaríaIndistinguishableN/AYesNo
María Alejandra Sosa12/03/2025ArgentinaBuenos AiresPaseo del BosqueLa PlataN/AAdultYesNo
María Alejandra Sosa12/01/2025ArgentinaBuenos AiresPaseo del BosqueLa PlataN/AN/ANoNo
María Alejandra Sosa12/01/2025ArgentinaBuenos AiresPaseo del BosqueLa PlataN/AN/ANoNo
María Alejandra Sosa12/01/2025ArgentinaBuenos AiresPaseo del BosqueLa PlataN/AN/ANoNo
Viviana Fuentes04/20/2025ArgentinaSaltaPlaza San MartinCafayateN/AN/ANoNo
Pablo Bruni02/25/2023ArgentinaEntre RíosParque Nacional El PalmarN/AN/AYesNo
Gustavo Pascuas01/20/2023ArgentinaBuenos AiresMar AzulAdultNoNo
María Alejandra Sosa08/30/2021ArgentinaBuenos AiresAvenida 60 440La PlataN/AN/AYesNo
Hugo Caverzasi04/11/2020ArgentinaCórdobaCampo E. AlvarezLas VarillasN/AN/ANoNo
Luis Fernandez Campos08/16/2019BoliviaCochabambaCasa CampestreQuillacolloIndistinguishableSeveralYesNo
Diego Oscar02/19/2017ArgentinaBuenos AiresIngeniero MaschwitzIndistinguishableImmatureYesNo
Federico Burgos Bauer01/28/2015ArgentinaLa PampaLaguna GuatrachéGuatrachéN/AAdultYesNo
Santiago Sainz-trápaga11/16/2013ArgentinaChubutPuerto MadrynIndistinguishableAdultYesNo
Alejandra Valerani02/13/2014ArgentinaBuenos AiresVilla del Parque/fuente de los VascosTandilIndistinguishableAdultYesNo
Carlos M. Grassini08/18/2013ArgentinaEntre RíosGorgonzola, entre Posina y Monza, monte de espinalChajaríIndistinguishableAdultYesNo
Jose Luis Merlo05/08/2009ArgentinaBuenos AiresParque Natural Municipal Ribera Norte (San Isidro)IndistinguishableJuvenileYesNo


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Number of Films: 25


Video ID: 6669
  Adult

Rosario
Santa Fe
Argentina
05/18/2025
Peter Vidana
Video ID: 6114
  Fledgling

Cafayate
Salta
Argentina
01/05/2024
Viviana Fuentes
Video ID: 6068
  Immature

Lomas de Zamora
Buenos Aires
Argentina
12/24/2023
Santos Di Mauro



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 Reports


 Detail of places sorted by number of records






Number of Records: 8311



Page 1 of 832
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
244512009/03/202609:38ArgentinaBuenos AiresParaná 3745, Martínez1Jorge La Grotteria
244510308/03/202615:33ArgentinaBuenos AiresHipólito Yrigoyen 2090, Martínez2María Alejandra Sosa
244508708/03/202612:11ArgentinaBuenos AiresCamino de la Ribera Norte 650-602, Parque Natural Municipal Ribera Norte (San Isidro)1María Alejandra Sosa
244505408/03/202617:52ArgentinaCiudad Autónoma de Buenos AiresCalle Andres Bello, Lago de RegatasGuillermo Marcaida
244486908/03/202615:33ArgentinaBuenos AiresHipólito Yrigoyen 2090, Martínez2Jorge La Grotteria
244474908/03/202612:11ArgentinaBuenos AiresCamino de la Ribera Norte 650-602, Parque Natural Municipal Ribera Norte (San Isidro)1Jorge La Grotteria
244500907/03/2026ArgentinaBuenos AiresEstancia Nahuel Ruca, Mar ChiquitaCelina Emilia Iratchet
244308607/03/202607:47ArgentinaEntre RíosHipólito Yrigoyen 3225, Concordia1Patricia Beatriz Benitez
244294206/03/2026ArgentinaBuenos AiresFrancisco A. Berra, San Miguel del Monte2Diego Oscar
244156003/03/202619:31ArgentinaBuenos AiresCabañas Edén Soñado, Tandil2Santiago Juan Torres
Page 1 of 832

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Citation recommended:

EcoRegistros. 2026. Harris´s Hawk (Parabuteo unicinctus) - Species sheet. Acceded from https://www.ecoregistros.org on 10/03/2026.