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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 Concordia

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: 636016
  Adult

Concordia
Entre Ríos
Argentina
05/17/2025
Gabriela Susana Gallinger
Foto
Photography ID: 577266
 
Concordia
Entre Ríos
Argentina
02/11/2023
María Alejandra Sosa
Foto
Photography ID: 542973
  Adult

Concordia
Entre Ríos
Argentina
07/29/2023
María Alejandra Sosa
Foto
Photography ID: 542972
  Adult

Concordia
Entre Ríos
Argentina
07/29/2023
María Alejandra Sosa
Foto
Photography ID: 542967
  Adult

Concordia
Entre Ríos
Argentina
07/29/2023
María Alejandra Sosa
Foto
Photography ID: 542942
  Adult

Concordia
Entre Ríos
Argentina
07/29/2023
María Alejandra Sosa
Foto
Photography ID: 542941
  Adult

Concordia
Entre Ríos
Argentina
07/29/2023
María Alejandra Sosa
Foto
Photography ID: 542940
  Adult

Concordia
Entre Ríos
Argentina
07/29/2023
María Alejandra Sosa
Foto
Photography ID: 542867
 
Concordia
Entre Ríos
Argentina
07/28/2023
María Alejandra Sosa
Foto
Photography ID: 535719
 
Concordia
Entre Ríos
Argentina
02/11/2023
María Alejandra Sosa
Foto
Photography ID: 440091
  Adult

Concordia
Entre Ríos
Argentina
11/14/2020
Pablo Bruni
Foto
Photography ID: 440081
  Adult

Concordia
Entre Ríos
Argentina
08/16/2020
Pablo Bruni



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 Reports


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Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
244004625/02/2026ArgentinaEntre RíosColonia Ayuí, Paso del Águila, Concordia1Patricia Beatriz Benitez
243226908/02/2026ArgentinaEntre RíosVilla Zorraquin, Concordia1Pablo Bruni
242077225/01/202610:48ArgentinaEntre RíosCostanera, Concordia1Jorge La Grotteria
242070725/01/202610:48ArgentinaEntre RíosCostanera, Concordia1María Alejandra Sosa
242012023/01/202618:25ArgentinaEntre RíosLago Salto Grande, Concordia1María Alejandra Sosa
241999523/01/202618:25ArgentinaEntre RíosLago Salto Grande, Concordia1Jorge La Grotteria
241970821/01/202619:15ArgentinaEntre RíosLago Salto Grande, Concordia2Jorge La Grotteria
241949721/01/202619:15ArgentinaEntre RíosLago Salto Grande, Concordia2María Alejandra Sosa
241557813/01/202609:28ArgentinaEntre RíosCostanera, Concordia1María Alejandra Sosa
241166807/01/202615:14ArgentinaEntre RíosRemedios Escalada De San Martin 1205, Concordia1Patricia Beatriz Benitez
Page 1

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Citation recommended:

EcoRegistros. 2026. Cattle Tyrant (Machetornis rixosa) - Species sheet. Acceded from https://www.ecoregistros.org on 14/03/2026.