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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: 641021
  Adult

Colonia Durán
Santa Fe
Argentina
06/28/2025
Maximiliano Sager
Foto
Photography ID: 491537
 
Alejandra
Santa Fe
Argentina
04/03/2022
Maximiliano Sager
Foto
Photography ID: 268281
  Adult

Alejandra
Santa Fe
Argentina
06/03/2018
Maximiliano Sager
Foto
Photography ID: 256818
  Adult

Cañada La Zulema
Santa Fe
Argentina
03/28/2018
Maximiliano Sager
Foto
Photography ID: 137236
  Adult

Puerto Reconquista
Santa Fe
Argentina
02/08/2016
Maximiliano Sager



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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
233311610/07/2025ArgentinaSanta FeCañada Malabrigo2Maximiliano Sager
233308010/07/2025ArgentinaSanta FeCamping Malabrigo2Maximiliano Sager
233302409/07/2025ArgentinaSanta FeColonia Sager - La Perla1Maximiliano Sager
231151928/06/2025ArgentinaSanta FeEstablecimiento Don José, Colonia Durán3Maximiliano Sager
229439031/05/2025ArgentinaSanta FePraderas del Batitu, San Javier2Maximiliano Sager
228888717/05/2025ArgentinaSanta FeCañada Rp 87s1Maximiliano Sager
228899816/05/2025ArgentinaSanta FeBerna, Rp 288-s1Maximiliano Sager
228896516/05/2025ArgentinaSanta FeCañada Capozzolo1Maximiliano Sager
229137811/05/2025ArgentinaSanta FeCañada Hernán, Alejandra1Maximiliano Sager
229174910/05/2025ArgentinaSanta FeRuta 38 a 15 km de Alejandra2Maximiliano Sager
Page 1

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Citation recommended:

EcoRegistros. 2026. Cattle Tyrant (Machetornis rixosa) - Species sheet. Acceded from https://www.ecoregistros.org on 23/03/2026.