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Black-fronted Ground Tyrant

Muscisaxicola frontalis
(Burmeister, KHK, 1860)
Dormilona Frente Negra

Family: Tyrannidae
Order: Passeriformes
Class: Aves
Phylum / Division: Chordata
Kingdom: Animalia

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Records from Mendoza

Conservation status according to BirdLife International: Least Concern

Synonyms: Ptyonura frontalis.


Description: Large ground-tyrant about 18 cm long, with a very conspicuous black forehead and anterior crown that extends backward as a fine line to the nape. Striking white loral patch between the eye and the bill that strongly contrasts with the black forehead. Grayish tones above and whitish to pale gray underparts. Bill relatively long and slightly decurved. White undertail-coverts and dark tail. Juvenile lacks a well-defined black crown, shows edged wing coverts and a less contrasted facial pattern.

Distribution: Occurs in the high Andes of Cuyo and northern Patagonia; breeds in La Rioja, San Juan, Mendoza and Río Negro, also in adjacent high Andean central areas mainly between 2500–4500 m. Present in San Guillermo NP (San Juan) and Laguna Brava PP (La Rioja). In autumn–winter it moves to the Altiplano of southern Peru and western Bolivia, where it spends the cold season, migrating through the northwestern provinces of Argentina.

Habitat: High Andean grasslands, gravel plains, rocky outcrops and slopes with low vegetation; edges of wetlands and mountain streams. Prefers rocky areas with scattered vegetation where it nests in crevices or cavities.

Behavior: Searches the ground for prey with short runs and hops; perches on prominent rocks. Usually solitary or in pairs during breeding; during seasonal movements it may be observed in loose groups. Roosts in rock cavities; sometimes shares shelters with other ground-tyrants. Song is a soft, high-pitched whistle; calls are short and brief. During displays it utters melodious and high notes. Short, dry calls in flight or alarm.

Diet: Insects and other arthropods captured on the ground through short runs and hops; also takes prey in brief aerial sallies. Occasionally consumes cactus fruits.

Breeding: Cup-shaped nest placed in rock crevices, built with fine grasses and lined with hair and feathers.

Conservation status: Not threatened. Relatively uncommon locally due to its preference for high-elevation habitats restricted to the high Andes.


Authors of this compilation: Diego Carus and Maria Belén Dri – 06/12/2025




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Last published photographs

Foto
Photography ID: 678624
  Adult

Parque Provincial Aconcagua
Mendoza
Argentina
02/19/2026
Diego Trillo
Foto
Photography ID: 678623
  Adult

Parque Provincial Aconcagua
Mendoza
Argentina
02/19/2026
Diego Trillo
Foto
Photography ID: 678621
  Adult

Parque Provincial Aconcagua
Mendoza
Argentina
02/19/2026
Diego Trillo
Foto
Photography ID: 678620
  Adult

Parque Provincial Aconcagua
Mendoza
Argentina
02/19/2026
Diego Trillo
Foto
Photography ID: 678616
  Adult

Parque Provincial Aconcagua
Mendoza
Argentina
02/19/2026
Diego Trillo
Foto
Photography ID: 678615
  Adult

Parque Provincial Aconcagua
Mendoza
Argentina
02/19/2026
Diego Trillo
Foto
Photography ID: 678613
  Adult

Parque Provincial Aconcagua
Mendoza
Argentina
02/19/2026
Diego Trillo
Foto
Photography ID: 673544
  Adult

Laguna del Diamante
Mendoza
Argentina
01/31/2026
Pablo Moreno
Foto
Photography ID: 669355
  Adult

Parque Provincial Aconcagua
Mendoza
Argentina
12/16/2025
Diego Oscar
Foto
Photography ID: 622632
  Adult

San Carlos
Mendoza
Argentina
01/13/2025
Santos Uranga
Foto
Photography ID: 618740
  Squab

Laguna del Diamante
Mendoza
Argentina
01/11/2025
Pablo Moreno
Foto
Photography ID: 618739
  Adult

Laguna del Diamante
Mendoza
Argentina
01/11/2025
Pablo Moreno



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 Reports


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Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
244907019/02/2026ArgentinaMendozaSendero Laguna Horcones hasta Puente Colgante, Parque Provincial AconcaguaDiego Trillo
243555331/01/2026ArgentinaMendozaCasa De Piedra, Laguna del Diamante3Pablo Moreno
243554431/01/2026ArgentinaMendozaLaguna Del Diamante, San Carlos1Pablo Moreno
240081516/12/2025ArgentinaMendozaParque Provincial Aconcagua2Diego Oscar
225777527/02/2025ArgentinaMendozaReserva Natural Villavicencio2Emilio Martin Perez
225781311/02/2025ArgentinaMendozaRuta provincial 226 a Planchon Vergara, Las Loicas1Emilio Martin Perez
224601011/02/2025ArgentinaMendozaRuta 226, Malargüe1Emilio Martin Perez
224596410/02/2025ArgentinaMendozaRío pehuenche, Malargüe1Emilio Martin Perez
224901913/01/2025ArgentinaMendozaLaguna Del Diamante, San CarlosSantos Uranga
223659011/01/2025ArgentinaMendozaCasa De Piedra, Laguna del Diamante2Pablo Moreno
Page 1

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Citation recommended:

EcoRegistros. 2026. Black-fronted Ground Tyrant (Muscisaxicola frontalis) - Species sheet. Acceded from https://www.ecoregistros.org on 11/04/2026.