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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: 516717
 
Santa Fe
Santa Fe
Argentina
12/02/2022
Pablo Capovilla
Foto
Photography ID: 516713
 
Santa Fe
Santa Fe
Argentina
12/02/2022
Pablo Capovilla
Foto
Photography ID: 511548
  Adult

Santa Fe
Santa Fe
Argentina
10/24/2022
Pablo Capovilla
Foto
Photography ID: 447387
  Adult

Esperanza
Santa Fe
Argentina
05/31/2021
Pablo Capovilla
Foto
Photography ID: 333025
  Adult

Pozo del Molle
Córdoba
Argentina
05/18/2019
Pablo Capovilla
Foto
Photography ID: 238521
  Adult

Santurce, San Cristóbal
Santa Fe
Argentina
01/09/2018
Pablo Capovilla
Foto
Photography ID: 133861
  Adult

Punta del Este
Maldonado
Uruguay
01/13/2016
Pablo Capovilla
Foto
Photography ID: 90226
  Adult

Santurce, San Cristóbal
Santa Fe
Argentina
03/23/2015
Pablo Capovilla
Foto
Photography ID: 62754
  Adult

Esperanza
Santa Fe
Argentina
06/20/2014
Pablo Capovilla
Foto
Photography ID: 34700
  Adult

Esperanza
Santa Fe
Argentina
01/13/2014
Pablo Capovilla
Foto
Photography ID: 24276
  Adult

Esperanza
Santa Fe
Argentina
07/21/2013
Pablo Capovilla
Foto
Photography ID: 21350
  Adult

Esperanza
Santa Fe
Argentina
04/09/2013
Pablo Capovilla



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Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
220922815/12/2024ArgentinaSanta FeReserva Natural Urbana San Cristobal, Departamento San Cristobal1Pablo Capovilla
220552601/12/2024ArgentinaSanta FeReserva Provincial Cayastá, Cayastá1Pablo Capovilla
221480812/10/2024ArgentinaSanta FeReserva Ecológica Ciudad Universitaria UNL (RECU), Santa Fe1Pablo Capovilla
214204005/09/2024ArgentinaSanta FeReserva Natural Urbana del Oeste, Santa Fe3Pablo Capovilla
213493614/08/2024ArgentinaSanta FeA orillas del río Tapenaga, Florencia2Pablo Capovilla
212689401/08/2024ArgentinaSanta FeReserva Natural Urbana del Oeste, Santa Fe4Pablo Capovilla
210842230/06/2024ArgentinaSanta FeComplejo T. Gente del Agua. Jaaukanigás, Reconquista1Pablo Capovilla
211982014/06/2024ArgentinaSanta FeReserva Natural Urbana del Oeste, Santa Fe2Pablo Capovilla
201476826/03/2024ArgentinaSanta FeReserva Natural Urbana del Oeste, Santa Fe2Pablo Capovilla
201236918/03/2024ArgentinaSanta FeReserva Natural Urbana del Oeste, Santa Fe2Pablo Capovilla
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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