Family Tyrant-flycatchers (Tyrannidae)

Vulnerable

White-tailed Shrike-tyrant (Agriornis albicauda)


Taxonomy

French: Gaucho à queue blanche German: Weißschwanz-Hakentyrann Spanish: Gaucho andino
Taxonomy:

Dasycephala albicauda

R. A. Philippi [Krumwiede] and Landbeck

, 1863,

Cordillera de Arica, Chile

.

Previously listed as A. andicola, but this name is a junior homonym of A. micropterus andecola#R; realizing this, Sclater replaced his own name andicola, of 1860, with pollens, but in the meantime S form albicauda had been described and thus takes priority as species name. Races poorly differentiated. Two subspecies recognized.

Subspecies and Distribution
  • A. a. pollens P. L. Sclater, 1869 – Ecuador.
  • A. a. albicauda (R. A. Philippi [Krumwiede] & Landbeck, 1863) – Peru, W Bolivia, N Chile (Tarapacá, Antofagasta) and NW Argentina (Tucumán).
  • Descriptive notes

    25–28 cm. Has narrow buff supercilium, streaked head side; dark grey-brown above, some pale margins on wings; central tail feathers like back, remainder white with... read more

    Voice

    Call a surprising and loud, melodic “teeu, tcheeu-tcheeu-tcheeuw!”, with many variations. Adult... read more

    Habitat

    Páramo, puna and montane scrub and areas having sparse and xeric vegetation of... read more

    Food and feeding

    Large insects, small mammals, lizards, frogs, eggs or nestlings of other birds. Perches conspicuously on rocky outcrops or on bushes,... read more

    Breeding

    Birds with enlarged gonads in Jun in NW Ecuador. Male during aerial display circles silently, alternately rising to partial stall and... read more

    Movements

    Resident.

    Status and conservation

    VULNERABLE. Very rare and local. Was apparently once much more numerous, but has declined in recent decades. Total population of a few thousands becoming increasingly... read more

    Recommended citation

    Farnsworth, A. & Langham, G. (2019). White-tailed Shrike-tyrant (Agriornis albicauda). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from https://www.hbw.com/node/57433 on 17 June 2019).