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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: 628173
  Adult

Chancani
Córdoba
Argentina
01/11/2025
Walter Bustamante
Foto
Photography ID: 619710
  Adult

El Pingo
Entre Ríos
Argentina
07/17/2024
Walter Bustamante
Foto
Photography ID: 597219
  Adult

Laguna blanca
Formosa
Argentina
07/11/2024
Walter Bustamante
Foto
Photography ID: 596477
  Adult

Laguna Gallo
Formosa
Argentina
07/10/2024
Walter Bustamante
Foto
Photography ID: 592397
  Adult

Huerta grande
Córdoba
Argentina
01/06/2023
Walter Bustamante
Foto
Photography ID: 590120
  Adult

Tipiro
Santiago del Estero
Argentina
07/21/2023
Walter Bustamante
Foto
Photography ID: 495123
  Adult

Huerta grande
Córdoba
Argentina
01/06/2022
Walter Bustamante
Foto
Photography ID: 480409
  Adult

Huerta grande
Córdoba
Argentina
02/20/2020
Walter Bustamante
Foto
Photography ID: 477276
  Adult

Sierras de Córdoba
Córdoba
Argentina
05/15/2021
Walter Bustamante
Foto
Photography ID: 391301
  Adult

San Blas de los Sauces
La Rioja
Argentina
07/16/2019
Walter Bustamante
Foto
Photography ID: 345858
  Adult

La Falda
Córdoba
Argentina
01/25/2019
Walter Bustamante



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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
243923123/01/2026ArgentinaCórdobaParque Nacional TraslasierraWalter Bustamante
242398212/01/2026ArgentinaCórdobaSan Roque2Walter Bustamante
226614411/01/2025ArgentinaCórdobaParque Provincial, ChancaniWalter Bustamante
222912324/12/2024ArgentinaCórdobaLa Falda1Walter Bustamante
223975317/07/2024ArgentinaEntre RíosEl PingoWalter Bustamante
213776411/07/2024ArgentinaFormosaEstero Poi - Parque Nacional Río Pilcomayo, Laguna blancaWalter Bustamante
213551810/07/2024ArgentinaFormosaEn los humedales que se encuentran en la Rp3, Laguna GalloWalter Bustamante
209947221/07/2023ArgentinaSantiago del EsteroLagunas de Tipiro, TipiroWalter Bustamante
211713906/01/2023ArgentinaCórdobaHuerta grandeWalter Bustamante
158915906/01/2022ArgentinaCórdobaHuerta grandeWalter Bustamante
Page 1

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Citation recommended:

EcoRegistros. 2026. Cattle Tyrant (Machetornis rixosa) - Species sheet. Acceded from https://www.ecoregistros.org on 25/03/2026.