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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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Records from Bañado La Estrella

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: 655216
  Adult

Bañado La Estrella
Formosa
Argentina
09/19/2025
Hugo Alberto Valderrey
Foto
Photography ID: 643692
  Adult

Bañado La Estrella
Formosa
Argentina
07/07/2025
Facundo Carretero
Foto
Photography ID: 643305
  Adult

Bañado La Estrella
Formosa
Argentina
07/07/2025
Jorge Carlos Trincavelli
Foto
Photography ID: 597010
  Adult

Bañado La Estrella
Formosa
Argentina
08/14/2024
Hugo Alberto Valderrey
Foto
Photography ID: 523839
  Adult

Bañado La Estrella
Formosa
Argentina
08/16/2013
Ramon Moller Jensen
Foto
Photography ID: 516382
  Adult

Bañado La Estrella
Formosa
Argentina
07/12/2022
Andrés Cecconi
Foto
Photography ID: 343584
  Adult

Bañado La Estrella
Formosa
Argentina
06/22/2019
Carlos Valpreda
Foto
Photography ID: 66259
  Adult

Bañado La Estrella
Formosa
Argentina
08/16/2013
Gustavo Kin



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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
237070519/09/2025ArgentinaFormosaFortín La Soledad, Bañado La EstrellaHugo Alberto Valderrey
235615218/08/2025ArgentinaFormosaEl Vertedero., Bañado La EstrellaEsteban Argerich
232315207/07/2025ArgentinaFormosaBañado la Estrella, Bañado La EstrellaFacundo Carretero
232048307/07/2025ArgentinaFormosaBañado La EstrellaJorge Carlos Trincavelli
213723714/08/2024ArgentinaFormosaLas Lomitas, Bañado La EstrellaHugo Alberto Valderrey
179491920/07/2023ArgentinaFormosaBañado la Estrella, Bañado La EstrellaMauro Carballo
180189619/07/2023ArgentinaFormosaBañado La EstrellaMauro Carballo
168133612/07/2022ArgentinaFormosaEl Vertedero., Bañado La EstrellaAndrés Cecconi
160413519/06/2022ArgentinaFormosaBañado La EstrellaSusana Gomez
160412218/06/2022ArgentinaFormosaBañado La EstrellaSusana Gomez
Page 1

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Citation recommended:

EcoRegistros. 2026. Cattle Tyrant (Machetornis rixosa) - Species sheet. Acceded from https://www.ecoregistros.org on 09/03/2026.










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