Atlantic Plain Xenops

The Atlantic plain xenops is about 12 cm (4.7 in) long and weighs about 10 to 13 g (0.35 to 0.46 oz). Its bill is wedge-shaped, fairly stubby, and slightly upturned. The sexes are alike and juveniles resemble adults. Adults have a conspicuous buff or whitish supercilium and a wide pure white malar stripe. Their upperparts are dull brown to rufous brown and unstreaked; their crown is darker and lightly streaked. Their tail is cinnamon with much black. Their wings are also cinnamon, with a wide tawny or ochraceous band on the flight feathers. Their throat is pale with little or no streaking. Voice: The Atlantic plain xenops' song is a "series of 4-7 upslurred (or underslurred) notes, the first one often slightly lower pitched and subdued: wee-kwee-kwee-kwee-kweet!" Its call is a "short emphatic upslurred note kweet!, uttered singly or several times with intervals of typically 1.5‒3s".