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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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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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Latest feeding records
Is consumed, preyed upon or captured by




Number of Photography: 2108

Foto
Photography ID: 682231
  Adult

Playa Seré
Colonia
Uruguay
04/09/2026
Luis Mier
Foto
Photography ID: 681983
 
Mar del Plata
Buenos Aires
Argentina
04/02/2026
Paola Finelli
Foto
Photography ID: 680243
  Adult

Rosario
Santa Fe
Argentina
03/29/2026
Gaston Lisandro Gabinetti
Foto
Photography ID: 680208
  Adult

Rosario
Santa Fe
Argentina
03/29/2026
Peter Vidana
Foto
Photography ID: 680061
  Adult

La Emilia
Buenos Aires
Argentina
03/22/2026
Gaston Lisandro Gabinetti
Foto
Photography ID: 679761
  Adult

La Emilia
Buenos Aires
Argentina
03/22/2026
Peter Vidana
Foto
Photography ID: 679154
  Adult

Mendiolaza
Córdoba
Argentina
03/21/2026
Fernanda Ferrari
Foto
Photography ID: 679118
  Adult

Potrero de Garay
Córdoba
Argentina
02/17/2026
Jorge Carlos Trincavelli
Foto
Photography ID: 678135
  Adult

Vicente López
Buenos Aires
Argentina
03/18/2026
Lucas Peluffo



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Number of Recorded Vocalizations: 6



Audio playerUserDateCountryProvincePlaceSexLife stageIt was observedDetails
Viviana Fuentes01/06/2026ArgentinaTucumánColalao Del Valle - Ruta 40Tafí del ValleIndistinguishableN/ANoNo
Pablo Bruni03/22/2025ArgentinaCorrientesCerca Ruta 22Concepción del Yaguareté CoráN/AN/AYesNo
Viviana Fuentes03/13/2024ArgentinaTucumánSan Miguel, capitalN/AN/ANoNo
Viviana Fuentes03/13/2024ArgentinaTucumánTucumánN/AN/ANoNo
Pablo Bruni04/16/2022ArgentinaEntre RíosReserva ChaviyúDepartamento FederaciónN/AN/ANoNo
Diego Oscar06/01/2021ArgentinaBuenos AiresDel VisoN/AN/AYesNo


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Number of Films: 7





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 Reports


 Detail of places sorted by number of records






Number of Records: 13562



Page 1 of 1357
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
245790012/04/2026ArgentinaSantiago del EsteroDique Los Quiroga - Sgo. del Estero, Banda1Rodolfo Domnanovich
245737211/04/2026ArgentinaCórdobaCuatro Bocas, Las VarillasHugo Caverzasi
245797910/04/2026ArgentinaCiudad Autónoma de Buenos AiresLago de Regatas, Parque 3 de FebreroAndrea Casaburi
245785309/04/2026UruguayColoniaDesembocadura arroyo las vacas, Playa SeréLuis Mier
245707909/04/2026ArgentinaBuenos AiresReserva Natural Yrigoyen (yrigoyen y el Río), Vicente López1Diego Oscar
245703909/04/2026ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Costanera Sur (RECS)3Diego Oscar
245690109/04/202617:10ArgentinaSanta FeSauce Viejo1Jorge La Grotteria
245689209/04/202615:57ArgentinaSanta FeSauce Viejo1Jorge La Grotteria
245678608/04/202618:22ArgentinaSanta FeRivadavia 2443, Santa Fe de la Vera Cruz1Jorge La Grotteria
245675308/04/202608:35ArgentinaSanta FeSauce Viejo1Jorge La Grotteria
Page 1 of 1357

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Citation recommended:

EcoRegistros. 2026. Cattle Tyrant (Machetornis rixosa) - Species sheet. Acceded from https://www.ecoregistros.org on 13/04/2026.