Sulphur-bearded Reedhaunter

The sulphur-bearded reedhaunter is 15 to 16 cm (5.9 to 6.3 in) long and weighs 12 to 14 g (0.42 to 0.49 oz). The sexes have the same plumage. Adults have a buffish white supercilium on an otherwise grayish-streaked whitish face. Their crown, back, rump, and uppertail coverts are olive-brown. Their tail feathers are sharply pointed; the central pair are brownish and longer than the others, which are more rufous. Their greater and median wing coverts are rufous, the primary coverts and secondaries dark fuscous, and the primaries rufous with rich tawny bases. Voice: The sulphur-bearded reedhaunter's song is "a slightly rising trill c. 2·5–3·5 seconds long, followed by rapid series of harsh notes that fade towards end, 'd-d-d-r-r-i-i-, dirip, dirip, dirip, drip-drip-dreeuw-dreeuw', sometimes followed by upslurred trill". Members of a pair often sing in duet.