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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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Last published photographs

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
Foto
Photography ID: 678108
  Adult

Reserva Natural Urbana Taku
La Rioja
Argentina
03/14/2026
Carlos De Biagi
Foto
Photography ID: 677801
  Adult

Henderson
Buenos Aires
Argentina
03/16/2026
Juan Manuel Canepa
Foto
Photography ID: 677785
  Adult

Arauco
La Rioja
Argentina
03/05/2026
Carlos De Biagi
Foto
Photography ID: 677768
 
Belén de Escobar
Buenos Aires
Argentina
03/15/2026
Paola Finelli



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Last Vocalizations published



Audio playerUserDateCountryProvincePlaceSexLife stageIt was observedDetails
Viviana Fuentes01/06/2026ArgentinaTucumánColalao Del Valle - Ruta 40Tafí del ValleIndistinguishableN/ANoNo



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Last Filmings published




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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
245235926/03/2026ArgentinaEntre RíosPerdices1Diego Oscar
245252825/03/2026ArgentinaRío NegroRuta 151 - cercanías a Catriel, Ruta del desierto1Hugo Caverzasi
245172225/03/2026ArgentinaEntre RíosEco Parque Salto Grande, Concordia2Pablo Bruni
245036223/03/202618:54ArgentinaSanta Fe1º de Mayo 455, Santa Fe de la Vera Cruz3Gustavo Fernando Durán
245035223/03/202618:45ArgentinaSanta FeAvenida de Circunvalación de Santa Fe, Santa Fe de la Vera Cruz1Gustavo Fernando Durán
245329922/03/2026ArgentinaBuenos AiresLa EmiliaGaston Lisandro Gabinetti
245296522/03/2026ArgentinaBuenos AiresLa EmiliaPeter Vidana
244958322/03/202614:00ArgentinaEntre RíosParque Nacional El Palmar1Jorge La Grotteria
244941622/03/202610:57ArgentinaSanta FeRuta Provincial 50S1Gustavo Fernando Durán
245085421/03/2026ArgentinaCórdobaEl Talar. Las zinnias, MendiolazaFernanda Ferrari
Page 1

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Citation recommended:

EcoRegistros. 2026. Cattle Tyrant (Machetornis rixosa) - Species sheet. Acceded from https://www.ecoregistros.org on 29/03/2026.