Duida Woodcreeper

The Duida woodcreeper is 17 to 19 cm (6.7 to 7.5 in) long; males weigh 24 to 25 g (0.85 to 0.88 oz). It is a smallish, slim, woodcreeper with a slim decurved bill. The sexes have the same plumage. Adults' face, crown, and nape are dusky brown with few or no spots on the crown. Their back and wing coverts are dark russet-brown, and their rump, wings, and tail rufous-chestnut with blackish brown tips on the primaries. Their throat is plain buffy. Their breast and belly are grayish brown to olive-brown with bold, blackish-edged, pale buff to creamy white streaks. Voice: The Duida woodcreeper's song differs from those of its former conspecifics; their songs were among the strongest evidence for their separation. The Duida woodcreeper sings "8–12 notes in 2·5 seconds with a somewhat bouncing, thin and high-pitched quality, described as 'peer, peer, peer, pi, pi, pi, pi, pi, pi, pu, pu, peu' or 'pe-pee-pee-pee-peer-peer-peer-pear' ".