White-tailed Shrike-Tyrant

The white-tailed shrike-tyrant is 25 to 28 cm (9.8 to 11 in) long. The sexes have the same plumage. The two subspecies are practically indistinguishable though A. a. pollens may be slightly larger than the nominate. Adults have a dark gray-brown crown, a narrow buff supercilium, and a streaked face. Their upperparts are dark gray-brown. Their wings are mostly dark gray-brown with paler edges on the flight feathers. Their underwing coverts are cinnamon-buff. Their central tail feathers are dark gray-brown and the rest are white with small dark marks at their tips. Voice: The white-tailed shrike-tyrant's voice in Ecuador is described as "a loud and surprisingly melodic teeu, tcheeu-tcheeu-tcheeuw with many variations". In Peru it is described as "a haphazard series of loud tew and pew! notes".