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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 Ciudad de Mendoza

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: 676678
  Adult

Ciudad de Mendoza
Mendoza
Argentina
02/16/2026
Pablo Moreno
Foto
Photography ID: 647178
  Adult

Ciudad de Mendoza
Mendoza
Argentina
08/08/2025
Manuel Godoy
Foto
Photography ID: 629374
  Adult

Ciudad de Mendoza
Mendoza
Argentina
03/29/2025
Pablo Moreno
Foto
Photography ID: 616785
  Adult

Ciudad de Mendoza
Mendoza
Argentina
12/29/2024
Pablo Moreno
Foto
Photography ID: 609130
  Adult

Ciudad de Mendoza
Mendoza
Argentina
11/15/2024
Manuel Godoy
Foto
Photography ID: 577405
  Adult

Ciudad de Mendoza
Mendoza
Argentina
03/24/2024
Pablo Moreno
Foto
Photography ID: 513980
  Adult

Ciudad de Mendoza
Mendoza
Argentina
11/08/2022
Diego Alfonso Rosa
Foto
Photography ID: 513979
  Adult

Ciudad de Mendoza
Mendoza
Argentina
11/08/2022
Diego Alfonso Rosa
Foto
Photography ID: 421774
  Adult

Ciudad de Mendoza
Mendoza
Argentina
11/06/2020
Silvio Montani
Foto
Photography ID: 274454
  Adult

Ciudad de Mendoza
Mendoza
Argentina
01/27/2018
Vicente Piccirillo
Foto
Photography ID: 274396
  Adult

Ciudad de Mendoza
Mendoza
Argentina
07/04/2018
Facundo Ciperiani
Foto
Photography ID: 214695
  Adult

Ciudad de Mendoza
Mendoza
Argentina
07/11/2017
Walter Bustamante



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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
244296716/02/2026ArgentinaMendozaParque General San Martín, Ciudad de Mendoza2Pablo Moreno
240310620/12/2025ArgentinaMendozaParque General San Martin, Ciudad de Mendoza2Pablo Moreno
239977713/12/2025ArgentinaMendozaParque General San Martín, Ciudad de Mendoza3Pablo Moreno
239729104/12/2025ArgentinaMendozaParque General San Martin, Ciudad de Mendoza1Pablo Moreno
238858122/11/2025ArgentinaMendozaParque General San Martín, Ciudad de Mendoza2Pablo Moreno
238423409/11/2025ArgentinaMendozaParque General San Martin, Ciudad de Mendoza2Pablo Moreno
238427008/11/2025ArgentinaMendozaParque General San Martin, Ciudad de Mendoza4Pablo Moreno
233888508/08/2025ArgentinaMendozaParque General San Martin, Ciudad de MendozaManuel Godoy
229486501/06/2025ArgentinaMendozaParque General San Martin, Ciudad de Mendoza2Pablo Moreno
228184328/04/2025ArgentinaMendozaParque General San Martín, Ciudad de Mendoza2Pablo Moreno
Page 1

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Citation recommended:

EcoRegistros. 2026. Cattle Tyrant (Machetornis rixosa) - Species sheet. Acceded from https://www.ecoregistros.org on 13/03/2026.