- Agriornis albicauda
25–28 cm (9¾-11 in)
- Dark greyish-brown upperparts; darker on wings
- Pale supercilium
- White throat heavily streaked black
- Pale greyish-brown breast and flanks
- Pale centre to belly
- White tail with dark greyish-brown central rectrices
- Heavy, dark bill
The scientific name has changed from andicola to albicauda because andicola was unavailable for this taxon; as a result, the subspecies was also changed, andicola to pollens.
Two subspecies are recognized:
- A. a. pollens:
- Andes of Ecuador (north to Imbabura)
- A. a. albicauda:
High-altitude shrub and grassland, farmed arable and pasture, semi-arid bushy country, open areas with sparse vegetation and scattered rocks.
They use a conspicuous perch to hunt for their prey, which consists mostly of large insects, small mammals, lizards, frogs, eggs or nestlings of other birds.
- Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2018. The eBird/Clements checklist of birds of the world: v2018. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
- Handbook of the Birds of the World Alive (retrieved Aug 2018)
- SACC proposal to change the scientific name of this species
- BirdForum Opus contributors. (2023) White-tailed Shrike-Tyrant. In: BirdForum, the forum for wild birds and birding. Retrieved 30 November 2023 from https://www.birdforum.net/opus/White-tailed_Shrike-Tyrant