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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 Lobería

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: 636432
  Adult

Lobería
Buenos Aires
Argentina
05/25/2025
Susana Gomez
Foto
Photography ID: 592535
  Adult

Lobería
Buenos Aires
Argentina
07/17/2024
Susana Gomez
Foto
Photography ID: 536723
  Adult

Lobería
Buenos Aires
Argentina
06/01/2023
Norma Medel
Foto
Photography ID: 536440
  Adult

Lobería
Buenos Aires
Argentina
05/28/2023
Susana Gomez
Foto
Photography ID: 516639
  Adult

Lobería
Buenos Aires
Argentina
12/03/2022
Susana Gomez
Foto
Photography ID: 502502
  Adult

Lobería
Buenos Aires
Argentina
07/31/2022
Susana Gomez
Foto
Photography ID: 450181
  Adult

Lobería
Buenos Aires
Argentina
06/08/2021
Susana Gomez
Foto
Photography ID: 443790
  Adult

Lobería
Buenos Aires
Argentina
05/07/2021
Susana Gomez
Foto
Photography ID: 408485
  Adult

Lobería
Buenos Aires
Argentina
08/16/2020
Susana Gomez
Foto
Photography ID: 404950
  Adult

Lobería
Buenos Aires
Argentina
07/09/2020
Susana Gomez
Foto
Photography ID: 399994
  Adult

Lobería
Buenos Aires
Argentina
06/04/2020
Susana Gomez
Foto
Photography ID: 398258
  Adult

Lobería
Buenos Aires
Argentina
05/16/2020
Susana Gomez



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 Reports


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Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
244146928/02/2026ArgentinaBuenos AiresLos Carpinchos, Lobería1Susana Gomez
236526020/09/2025ArgentinaBuenos AiresLos Carpinchos, Lobería2Francisco Encinosa
236341820/09/2025ArgentinaBuenos AiresLos Carpinchos, Lobería2Susana Gomez
236521602/08/2025ArgentinaBuenos AiresLos Carpinchos, Lobería2Francisco Encinosa
236374402/08/2025ArgentinaBuenos AiresLos Carpinchos, Lobería2Susana Gomez
236382709/07/2025ArgentinaBuenos AiresLos Carpinchos, Lobería1Susana Gomez
236391005/07/2025ArgentinaBuenos AiresLos Carpinchos, Lobería1Susana Gomez
229329925/05/2025ArgentinaBuenos AiresLos Carpinchos, LoberíaSusana Gomez
225019622/02/2025ArgentinaBuenos AiresLos Carpinchos, Lobería2Susana Gomez
224921220/02/2025ArgentinaBuenos AiresLos Carpinchos, Lobería2Susana Gomez
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.