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: 361070
  Adult

Delta del Paraná
Buenos Aires
Argentina
03/17/2019
Sebastián Otero
Foto
Photography ID: 340227
  Adult

Iglesia
San Juan
Argentina
07/01/2019
Sebastián Otero
Foto
Photography ID: 265107
  Adult

Parque Costero del Sur
Buenos Aires
Argentina
04/30/2018
Sebastián Otero
Foto
Photography ID: 231777
  Adult

San Rafael
Mendoza
Argentina
05/08/2016
Sebastián Otero



 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
212645609/07/2024ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Costanera Sur (RECS)16Sebastián Otero
203946001/06/2024ArgentinaBuenos AiresReserva Ecológica Vicente López1Sebastián Otero
203940025/05/2024ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Ciudad Universitaria - Costanera Norte (RECU-CN)9Sebastián Otero
203327311/05/2024ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Costanera Sur (RECS)6Sebastián Otero
202498620/04/2024ArgentinaCiudad Autónoma de Buenos AiresRosedal de Palermo, Parque 3 de Febrero5Sebastián Otero
203521414/03/2024ArgentinaMisionesReserva Natural Urutaú2Sebastián Otero
200630702/03/2024ArgentinaCiudad Autónoma de Buenos AiresLago de Regatas5Sebastián Otero
197426017/02/2024ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Costanera Sur (RECS)6Sebastián Otero
196550303/02/2024ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Costanera Sur (RECS)17Sebastián Otero
195846927/01/2024ArgentinaBuenos AiresReserva Ecológica Vicente López1Sebastián Otero
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 09/03/2026.










Fatbirder's Top 1000 Birding Websites

EcoRegistros ® - Copyright © 2011-2026
Jorge La Grotteria
All rights reserved