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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 San Miguel del Monte

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: 631274
  Adult

San Miguel del Monte
Buenos Aires
Argentina
04/18/2025
Fernando Miranda
Foto
Photography ID: 583511
  Immature

San Miguel del Monte
Buenos Aires
Argentina
05/11/2024
Hernán Tolosa
Foto
Photography ID: 583495
  Adult

San Miguel del Monte
Buenos Aires
Argentina
04/28/2024
Hernán Tolosa
Foto
Photography ID: 581986
  Adult

San Miguel del Monte
Buenos Aires
Argentina
04/28/2024
Jorgelina Lopez
Foto
Photography ID: 544377
  Immature

San Miguel del Monte
Buenos Aires
Argentina
07/30/2023
Hernán Tolosa
Foto
Photography ID: 493629
  Adult

San Miguel del Monte
Buenos Aires
Argentina
05/14/2022
Hernán Tolosa
Foto
Photography ID: 391399
  Adult

San Miguel del Monte
Buenos Aires
Argentina
03/21/2020
Hernán Tolosa



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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
244294206/03/2026ArgentinaBuenos AiresFrancisco A. Berra, San Miguel del Monte2Diego Oscar
227498518/04/2025ArgentinaBuenos AiresSan Miguel del MonteFernando Miranda
203265311/05/2024ArgentinaBuenos AiresFrancisco A. Berra, San Miguel del MonteHernán Tolosa
203262128/04/2024ArgentinaBuenos AiresSan Miguel del MonteHernán Tolosa
202763028/04/2024ArgentinaBuenos AiresSan Miguel del MonteJorgelina Lopez
201411624/03/2024ArgentinaBuenos AiresRuta Nacional 3, San Miguel del Monte1Jorge La Grotteria
201406224/03/2024ArgentinaBuenos AiresRuta Nacional 3, San Miguel del Monte1María Alejandra Sosa
189638214/10/2023ArgentinaBuenos AiresLaguna de Monte, San Miguel del MonteHernán Tolosa
189371007/10/2023ArgentinaBuenos AiresLaguna de Monte, San Miguel del MonteHernán Tolosa
181583126/08/2023ArgentinaBuenos AiresParaje Los Eucaliptos, San Miguel del MonteHernán Tolosa
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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