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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 Córdoba

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: 505334
  Adult

Córdoba
Córdoba
Argentina
08/15/2022
Federico J. Villegas
Foto
Photography ID: 435807
  Adult

Córdoba
Córdoba
Argentina
03/04/2021
Jorge Schlemmer
Foto
Photography ID: 418009
  Adult

Córdoba
Córdoba
Argentina
11/08/2020
Jorge Schlemmer
Foto
Photography ID: 416665
  Adult

Córdoba
Córdoba
Argentina
10/24/2020
Pablo Eguia
Foto
Photography ID: 409680
  Adult

Córdoba
Córdoba
Argentina
08/25/2020
Jorge Schlemmer
Foto
Photography ID: 407100
  Adult

Córdoba
Córdoba
Argentina
08/08/2020
Jorge Schlemmer
Foto
Photography ID: 405781
  Adult

Córdoba
Córdoba
Argentina
07/27/2020
Jorge Schlemmer
Foto
Photography ID: 405552
  Adult

Córdoba
Córdoba
Argentina
07/25/2020
Andrés G. Jacquat
Foto
Photography ID: 371964
  Adult

Córdoba
Córdoba
Argentina
01/05/2020
Natalia Soledad Herrada
Foto
Photography ID: 352263
  Adult

Córdoba
Córdoba
Argentina
09/22/2019
Natalia Soledad Herrada
Foto
Photography ID: 288018
  Adult

Córdoba
Córdoba
Argentina
09/16/2018
Pablo Eguia
Foto
Photography ID: 220642
  Adult

Córdoba
Córdoba
Argentina
05/11/2017
Lucas Pisana



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Last Vocalizations published




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Last Filmings published


Video ID: 581
♂ ♀
 
Córdoba
Córdoba
Argentina
01/02/2013
Daniel Oscar Serra



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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
243916126/01/2026ArgentinaCórdobaRoberto Barany 5930, CórdobaPablo Eguia
218007626/10/2024ArgentinaCórdobaCórdobaFabrizio García
163105815/08/2022ArgentinaCórdobareserva municipal Parque San Martín, CórdobaFederico J. Villegas
159600816/06/2022ArgentinaCórdobaParque del Kempes, Córdoba1Pablo Bruni
140294415/05/2021ArgentinaCórdobaParque Sarmiento, Córdoba1Fabrizio García
137497804/03/2021ArgentinaCórdobaParque Sarmiento, CórdobaJorge Schlemmer
137144619/02/2021ArgentinaCórdobaCórdoba4Fabrizio García
130813108/11/2020ArgentinaCórdobaParque Sarmiento, CórdobaJorge Schlemmer
130264624/10/2020ArgentinaCórdobaBarany 5930, CórdobaPablo Eguia
129831501/10/2020ArgentinaCórdobaParque Sarmiento, CórdobaGalileo Geeraert
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.