Pied-crested Tit-Tyrant

The pied-crested tit-tyrant is 11 to 12 cm (4.3 to 4.7 in) long; five females weighed an average of 6.7 g (0.24 oz). Adult males of the nominate subspecies have a dramatic split black crest formed by elongated feathers on the sides of the crown. The rest of their crown and their nape are white and the rest of their head is black. Their upperparts are black with thin white streaks. Their wings are black with white ends on the flight feathers. Their wing coverts have wide white tips that show as two bars on the closed wing. Voice: The pied-crested tit-tyrant's dawn song is "a squeaky series of notes and rising churrs: teek'teek'trk-trrrk or tk-tweek! trrrrk". Its call is "a descending series of squeaky, mewed notes, sometimes with a dry rattle: tweek-tweek-twik-tuik-trr".