Andean Tit-Spinetail

The Andean tit-spinetail is 15 to 17 cm (5.9 to 6.7 in) long and weighs about 15 to 16 g (0.53 to 0.56 oz). It is a small-bodied, long-tailed furnariid with a short bill. The sexes have the same plumage. Adults of the nominate subspecies L. a. andicola have a wide white supercilium on an otherwise dark streaky gray-brown face. Their crown is rich rufous chestnut with black streaks. Their upperparts are dark gray-brown with prominent white or whitish streaks. Their wings are dark brownish with faint rufescent edges on the coverts and flight feathers. Voice: What is thought to be the Andean tit-spinetail's song has been described as "a descending series of notes starting and ending with a trill or a tinkling trill that descends a little" and as "a hesitating series of high-pitched short trills". Its calls include "a weak, tinkling téz-dit or téz-dit-dit" and "fine zik, ti, or tic notes". It also makes "a high, mammallike squeal".