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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 Albúfera Laguna Mar Chiquita

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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Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
243720616/02/2026ArgentinaBuenos AiresEstancia Nahuel Rucá, Albúfera Laguna Mar Chiquita1Victor Hugo Michelini
221293612/10/2024ArgentinaBuenos AiresEstancia Nahuel Rucá, Albúfera Laguna Mar Chiquita2Victor Hugo Michelini
200646110/02/2024ArgentinaBuenos AiresAlbúfera Laguna Mar Chiquita1Sebastián Otero
197120010/02/2024ArgentinaBuenos AiresAlbúfera Laguna Mar Chiquita1Gabriel Carbajales
189421024/09/2023ArgentinaBuenos AiresEstancia Nahuel Rucá, Albúfera Laguna Mar Chiquita1Victor Hugo Michelini
181552908/07/2023ArgentinaBuenos AiresAlbúfera Laguna Mar ChiquitaJosé Luis Ianiro
173552318/03/2023ArgentinaBuenos AiresAlbúfera Laguna Mar ChiquitaAntonella Latorre
123188315/03/2020ArgentinaBuenos AiresCosta de la albufera, Albúfera Laguna Mar ChiquitaVictor Hugo Michelini
78489326/07/2018ArgentinaBuenos AiresCamino de acceso, Albúfera Laguna Mar ChiquitaVictor Hugo Michelini
62520106/10/2017ArgentinaBuenos AiresA 200m del acceso desde ruta 11, Albúfera Laguna Mar Chiquita1Christian Savigny
Page 1

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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.