Черноголовый крапивник Cantorchilus nigricapillus

Medium-sized wren; strikingly patterned if seen well. Rufous above with complex black-and-white face markings; clean white throat. Some populations have clean rufous flanks, others barred black-and-white. Black cap and nape give it a hooded appearance. Often stays hidden in tangles and thickets at forest edge or second growth, often near water. Difficult to get a clear look at. Listen for loud, ringing song, often given as a duet.