Adorable tiny bird that loosely resembles a minute tailless wren. Warm dark brown above with rufous overtones, and scaled below; pale-morph birds have white edgings to black “scales,” while dark-morph birds have edgings that are coffee-stain tan. Smaller Pygmy Cupwing lacks the tan spots speckling the crown and neck of Scaly-breasted. Scaly-breasted inhabits dark, damp areas in dense forest, often around boulders, streams, and ravines. Song is a jumbled series of high-pitched melodic warbles, notably more complex than the song of Pygmy Cupwing.