Agriornis albicauda
The White-tailed Shrike-Tyrant (Agriornis albicauda) is a robust and striking passerine of the high Andes, embodying its 'shrike-tyrant' moniker with a powerful build and predatory nature. Measuring 23-28 cm (9-11 in) in length and weighing 50-70g (1.8-2.5 oz), this species is predominantly grayish-brown dorsally, paling to a whitish supercilium and underparts, sometimes with subtle streaking. Its most distinctive field mark is the stark white outer tail feathers, forming a prominent 'V' espe...
Primarily inhabits high-altitude arid and semi-arid puna, páramo, and scrublands, often near rocky outcrops, sparse grasslands, or *Polylepis* woodlands. Found at elevations typically ranging from 2,800 to 5,000 meters above sea level.
Primarily insectivorous, feeding on large insects such as beetles, grasshoppers, and moths, but also preys on spiders, small lizards, and occasionally small rodents or bird nestlings, showcasing its predatory 'shrike-like' tendencies.
This diurnal shrike-tyrant typically perches prominently on rocks, low shrubs, or fence posts, maintaining an alert, upright posture while scanning its surroundings. Its primary foraging strategy is a 'sit-and-wait' approach, sallying to the ground to capture invertebrate prey or making short, ag...
The White-tailed Shrike-Tyrant is endemic to the Andean regions of South America, with a broad distribution spanning multiple countries. Its breeding range extends from southern Colombia through Ecuador and Peru, into Bolivia, northern Chile, and northwestern Argentina. This species is largely re...
Least Concern
- The White-tailed Shrike-Tyrant is one of the highest-dwelling passerines in the world, regularly found at elevations over 4,000 meters (13,000 feet). - Its genus name, *Agriornis*, literally means 'field bird' or 'rustic bird', reflecting its preference for open, often barren, high-altitude lan...