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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 Puerto Iguazú

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: 511241
  Adult

Puerto Iguazú
Misiones
Argentina
09/29/2022
Luis Carlos De Volder
Foto
Photography ID: 359055
  Adult

Puerto Iguazú
Misiones
Argentina
07/31/2019
Jorge La Grotteria
Foto
Photography ID: 356430
  Adult

Puerto Iguazú
Misiones
Argentina
09/16/2019
Eduardo Cusano
Foto
Photography ID: 272836
  Adult

Puerto Iguazú
Misiones
Argentina
06/17/2018
Dolores Fernandez
Foto
Photography ID: 270069
  Adult

Puerto Iguazú
Misiones
Argentina
06/03/2018
Victoria Herrera
Foto
Photography ID: 224282
  Adult

Puerto Iguazú
Misiones
Argentina
10/17/2017
Diego Trillo
Foto
Photography ID: 53400
  Adult

Puerto Iguazú
Misiones
Argentina
05/26/2014
Carlos Schmidt
Foto
Photography ID: 29962
  Adult

Puerto Iguazú
Misiones
Argentina
07/26/2013
Patricio M. Silfeni



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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
236765609/09/2025ArgentinaMisionesObservatorio de Aves Daniel Pupi Somay, Puerto IguazúAdrian Braidotti
229510504/06/202511:08ArgentinaMisionesRuta Nacional 12 3, Puerto Iguazú1Nicolas Olejnik
229327129/05/202514:13ArgentinaMisionesAvenida Guaraní 14, Puerto Iguazú1Gustavo Fernando Durán
217208212/10/2024ArgentinaMisionesComplejo Americano, Puerto Iguazú1Pablo Bruni
217161112/10/2024ArgentinaMisionesComplejo Americano, Puerto Iguazú1Faustino Hollmann
221031003/10/2024ArgentinaMisionesHito Tres Fronteras, Puerto Iguazú2Enrique Chiurla
220835203/10/2024ArgentinaMisionesHito Tres Fronteras, Puerto Iguazú2Victor Hugo Michelini
212174923/07/2024ArgentinaMisionesAvenida Tres Fronteras 780, Puerto Iguazú1Jorge La Grotteria
212174223/07/2024ArgentinaMisionesPuerto Iguazú1Jorge La Grotteria
212164423/07/2024ArgentinaMisionesAvenida Tres Fronteras 780, Puerto Iguazú1María Alejandra Sosa
Page 1

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Citation recommended:

EcoRegistros. 2026. Cattle Tyrant (Machetornis rixosa) - Species sheet. Acceded from https://www.ecoregistros.org on 09/03/2026.










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