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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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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: 614870
  Adult

Reserva Natural Urbana Taku
La Rioja
Argentina
12/14/2024
Carlos De Biagi
Foto
Photography ID: 605657
  Adult

Olta
La Rioja
Argentina
09/26/2024
Carlos De Biagi
Foto
Photography ID: 593413
  Adult

Reserva Natural Urbana Taku
La Rioja
Argentina
07/15/2024
Carlos De Biagi
Foto
Photography ID: 591080
  Adult

Dique de Los Sauces
La Rioja
Argentina
05/31/2024
Carlos De Biagi
Foto
Photography ID: 590890
  Adult

La Rioja
La Rioja
Argentina
05/11/2024
Carlos De Biagi
Foto
Photography ID: 581657
  Adult

Reserva Natural Urbana Taku
La Rioja
Argentina
04/18/2024
Carlos De Biagi
Foto
Photography ID: 572213
  Adult

La Rioja
La Rioja
Argentina
02/10/2024
Carlos De Biagi
Foto
Photography ID: 567050
  Adult

Reserva Natural Urbana Taku
La Rioja
Argentina
01/25/2024
Carlos De Biagi



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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
221060014/12/2024ArgentinaLa RiojaReserva Natural Urbana TakuCarlos De Biagi
217800728/09/2024ArgentinaLa RiojaDique el Cisco, Departamento General BelgranoCarlos De Biagi
217751126/09/2024ArgentinaLa RiojaCabañas Flores Azules, OltaCarlos De Biagi
217706826/09/2024ArgentinaLa RiojaDique El Garabato2Carlos De Biagi
217111912/09/2024ArgentinaLa RiojaEstablecimiento Olivos Argentinos8Carlos De Biagi
213473006/08/2024ArgentinaLa RiojaEstablecimiento Olivos ArgentinosCarlos De Biagi
212300915/07/2024ArgentinaLa RiojaReserva Natural Urbana TakuCarlos De Biagi
210807331/05/2024ArgentinaLa RiojaDique de Los SaucesCarlos De Biagi
210297724/05/2024ArgentinaLa RiojaReserva Natural Urbana Taku2Carlos De Biagi
210288711/05/2024ArgentinaLa RiojaColonia Frutihorticola, La RiojaCarlos De Biagi
Page 1

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Citation recommended:

EcoRegistros. 2026. Cattle Tyrant (Machetornis rixosa) - Species sheet. Acceded from https://www.ecoregistros.org on 15/04/2026.