This bird occurs in the high Andes of Peru. Its account describes feeding in short, wet grass beside water; males are black with a rufous back, while females are grey-brown.
Males are black with a prominent rufous back. Females are grey-brown rather than black and have a duller rufous back.
Aves de Perú says it feeds only in short, wet grass at the edges of water bodies. The account places it along water edges in the high Andes.
An extinction-risk assessment has not been added yet.