Don't want to see ads? Sign up...




Species icon
Cattle Tyrant

Machetornis rixosa
(Vieillot, LJP, 1819)
Picabuey
Suiriri-cavaleiro

Family: Tyrannidae
Order: Passeriformes
Class: Aves
Phylum / Division: Chordata
Kingdom: Animalia

 Request change
Filters


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




Loading map...




Last published photographs

Foto
Photography ID: 538178
  Adult

Parque Nacional Río Pilcomayo
Formosa
Argentina
12/27/2018
Martín Lépez
Foto
Photography ID: 537960
  Adult

Parque Nacional Pre-Delta
Entre Ríos
Argentina
11/29/2018
Martín Lépez
Foto
Photography ID: 489195
  Adult

Santo Tomé
Santa Fe
Argentina
02/20/2018
Eduardo Beltrocco
Foto
Photography ID: 415454
  Adult

Concordia
Entre Ríos
Argentina
01/01/2018
María Alejandra Sosa
Foto
Photography ID: 401409
  Adult

Turdera
Buenos Aires
Argentina
11/07/2018
Vicente Piccirillo
Foto
Photography ID: 401379
  Adult

Turdera
Buenos Aires
Argentina
06/16/2018
Vicente Piccirillo
Foto
Photography ID: 399345
  Adult

Paraje La Jaula, Diamante
Entre Ríos
Argentina
09/23/2018
Andres Bianchi
Foto
Photography ID: 397924
  Adult

Pantanal
Mato Grosso
Brazil
07/21/2018
Eugenia Boggiano
Foto
Photography ID: 393578
♂ ♀
  Adult

Santo Tomé
Santa Fe
Argentina
03/25/2018
Eduardo Beltrocco



 View all photographs of the species




 Add a photography of this species





Last Vocalizations published




 Add an audio of this species





Last Filmings published




 Add a film of this species





 Reports


 Detail of places sorted by number of records








Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
122471231/12/2018ArgentinaEntre RíosÁrea Natural Protegida Don Sebastián1Luis Prevedel
86345931/12/2018UruguayMaldonadoArroyo Jose Ignacio1Diego Oscar
86325631/12/2018ArgentinaSanta FeBañado laguna setubal, Santa FeRodolfo Seró
187720830/12/2018ArgentinaFormosaReserva de Biósfera Laguna Oca, Formosa3Fabricio Candia
86262130/12/2018ArgentinaMisionesArroyo Paraiso, Reserva de Biosfera YabotíRicardo Juliano
187726029/12/2018ArgentinaFormosaHerradura, Laishi8Fabricio Candia
122471129/12/2018ArgentinaEntre RíosÁrea Natural Protegida Don Sebastián4Luis Prevedel
86340729/12/2018UruguayMontevideoJardín Botánico, MontevideoDiego Oscar
86338629/12/2018UruguayRío NegroPuente Libertador General San MartínDiego Oscar
122471028/12/2018ArgentinaEntre RíosÁrea Natural Protegida Don Sebastián2Luis Prevedel
Page 1

 Add a record of this species

Citation recommended:

EcoRegistros. 2026. Cattle Tyrant (Machetornis rixosa) - Species sheet. Acceded from https://www.ecoregistros.org on 11/04/2026.