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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: 559702
  Adult

Barrio dalvian
Mendoza
Argentina
04/20/2014
Damián Carnevale
Foto
Photography ID: 478740
  Adult

Ensenada
Buenos Aires
Argentina
03/22/2014
Walter Omar Buffarini
Foto
Photography ID: 473596
  Adult

Cartagena de Indias
Bolívar
Colombia
07/12/2014
Hugo Alberto Valderrey
Foto
Photography ID: 330677
  Adult

San Isidro
Buenos Aires
Argentina
06/01/2014
Guillermo C Olivero
Foto
Photography ID: 245427
 
Capilla del Monte
Córdoba
Argentina
12/31/2014
Natalia Pelossi
Foto
Photography ID: 197731
  Juvenile

Córdoba
Córdoba
Argentina
12/02/2014
Jorge Schlemmer



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Last Vocalizations published




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Last Filmings published


Video ID: 605
♂ ♀
  Adult

Chajarí
Entre Ríos
Argentina
05/02/2014
Carlos M. Grassini



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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
69340131/12/2014ArgentinaCórdobaCapilla del MonteNatalia Pelossi
56185729/12/2014ArgentinaCórdobaLaguna del Plata, La ParaEnzo Rossi
21571228/12/2014ArgentinaBuenos AiresGobernador UdaondoHernán Tolosa
21535828/12/2014ArgentinaCórdobaVilla Los AromosAndres Espindola
21471128/12/2014ArgentinaBuenos AiresPunta IndioFacundo Quintela
21464028/12/2014ArgentinaBuenos AiresMagdalenaFacundo Quintela
21453228/12/2014ArgentinaEntre RíosParque Nacional El PalmarPablo Meoniz
21422128/12/2014ArgentinaEntre RíosCeibasRodolfo Seró
21585827/12/2014ArgentinaFormosaCamping Chuqui Cue, HerraduraMartin Ferrari
21385827/12/2014ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Costanera Sur (RECS)Gonzalo Diaz
Page 1

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Citation recommended:

EcoRegistros. 2026. Cattle Tyrant (Machetornis rixosa) - Species sheet. Acceded from https://www.ecoregistros.org on 18/03/2026.