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Species icon
Cattle Tyrant

Machetornis rixosa
(Vieillot, LJP, 1819)
Picabuey
Suiriri-cavaleiro

Family: Tyrannidae
Order: Passeriformes
Class: Aves
Phylum / Division: Chordata
Kingdom: Animalia

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Records from Parque Nacional Iberá

Conservation status according to BirdLife International: Least Concern

Synonyms: Machetornis rixosus, Tyrannus rixosus.

Subspecies:


Description: A medium-sized, slender flycatcher with bright yellow underparts and soft brownish tones on the upperparts. The head shows a subtle gray wash, sometimes with a faint pale patch that is not easily visible at a distance. It often adopts an upright stance, perching on exposed structures. The bill is short, dark, and sturdy, suited for seizing active prey, while the rounded wings and moderately long tail give it a balanced, streamlined profile. Overall, it displays the clean, contrasting look typical of open-country tyrant flycatchers.

Geographical distribution: Widespread in South America, ranging from the southern Amazon and north-central regions down to central-eastern Argentina, and also present in Uruguay, Paraguay, and parts of Bolivia. It occurs continuously throughout tropical and subtropical zones, extending into temperate areas where open environments remain available.

Habitat: Occupies diverse open habitats, including natural grasslands, savannas, rural landscapes, roadsides, wetland edges, and even urbanized zones. Frequently associates with livestock, vehicles, or isolated structures that provide elevated perches essential for its foraging technique. It avoids dense forests but may use forest edges and degraded clearings.

Diet: Primarily insectivorous, feeding on medium to large insects captured in short, agile sallies from perches. It often pursues prey flushed by livestock, taking advantage of animals’ movement to detect insects. Occasionally consumes other arthropods or small vertebrates, reflecting a flexible feeding strategy according to local conditions.

Behavior: An active and alert species, frequently shifting between perches. Its most distinctive behavior is following livestock, which helps it locate disturbed insects. It flies with steady, direct wingbeats alternating with brief glides. Pairs or small groups are common, usually keeping watch from posts, fences, or rooftops.

Breeding: Builds a domed nest of fine plant fibers, roots, and assorted materials, placed in trees, human structures, or sometimes inside abandoned nests of other species. The typical clutch consists of two to three eggs, incubated by both adults. Young are fed regularly with prey captured during short flights around the nesting territory.

Conservation status: Classified globally as Least Concern, with stable populations and a broad distribution. Its ability to adapt to modified landscapes and coexist with rural activity has supported its persistence across much of its range.


Author of this compilation: EcoRegistros – 08/12/2025




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Last published photographs

Foto
Photography ID: 648474
  Adult

Parque Nacional Iberá
Corrientes
Argentina
08/07/2025
Aluminé Sangorrín
Foto
Photography ID: 630771
  Adult

Parque Nacional Iberá
Corrientes
Argentina
04/15/2025
Aluminé Sangorrín
Foto
Photography ID: 486306
  Adult

Parque Nacional Iberá
Corrientes
Argentina
03/05/2022
Eugenia Boggiano
Foto
Photography ID: 342867
  Adult

Parque Nacional Iberá
Corrientes
Argentina
07/17/2019
Andrés Cecconi
Foto
Photography ID: 327683
  Adult

Parque Nacional Iberá
Corrientes
Argentina
03/16/2019
Alec Earnshaw
Foto
Photography ID: 303714
  Adult

Parque Nacional Iberá
Corrientes
Argentina
10/27/2018
Max Uranga
Foto
Photography ID: 303713
  Adult

Parque Nacional Iberá
Corrientes
Argentina
10/27/2018
Max Uranga
Foto
Photography ID: 271634
  Adult

Parque Nacional Iberá
Corrientes
Argentina
06/07/2018
Victoria Herrera
Foto
Photography ID: 244094
  Adult

Parque Nacional Iberá
Corrientes
Argentina
01/23/2018
Jorge Omar Lanza
Foto
Photography ID: 243912
  Adult

Parque Nacional Iberá
Corrientes
Argentina
01/23/2018
Jorge Omar Lanza



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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
235013713/08/2025ArgentinaCorrientesPortal Lobo Cuá, Parque Nacional Iberá1Diego Oscar
234479307/08/2025ArgentinaCorrientesLobo Cuá, Parque Nacional IberáAluminé Sangorrín
227388915/04/2025ArgentinaCorrientesPaso Claro, Parque Nacional IberáAluminé Sangorrín
223347121/12/2024ArgentinaCorrientesPortal Lobo Cuá, Parque Nacional Iberá1Diego Oscar
218460802/11/2024ArgentinaCorrientesPortal Lobo Cuá, Parque Nacional Iberá2Pablo Bruni
201891720/03/2024ArgentinaCorrientesRuta 40 entre Rincòn del Socorro y Carlos Pellegrini, Parque Nacional Iberá6Diego Oscar
201837016/03/2024ArgentinaCorrientesRuta 40 entre Rincòn del Socorro y Carlos Pellegrini, Parque Nacional Iberá1Diego Oscar
167290107/11/2022ArgentinaCorrientesPortal Cambyretá, Parque Nacional Iberá1Diego Oscar
208499430/10/2022ArgentinaCorrientesPortal Laguna Iberá, Parque Nacional Iberá2Faustino Hollmann
160681117/06/2022ArgentinaCorrientesParque Provincial Iberá, Parque Nacional Iberá8Luis Cesar Tejo
Page 1

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Citation recommended:

EcoRegistros. 2026. Cattle Tyrant (Machetornis rixosa) - Species sheet. Acceded from https://www.ecoregistros.org on 17/03/2026.