Adult birds are unmistakeble, with a chestnut head and neck. Both sexes are similar in lumage. The juvenile bird is rusty-brown overall, with black barring and white spots. Its throat, central chest and belly are white. It takes some five years to acquire adult plumage.

Top, Left & Middle: A juvenile. Sandoval Lake, Puerto Maldonado, Peru, 20 June 2009
Right: An adult. Reserva Ecologica Taricaya, Puerto Maldonado, Peru, 28 May 2009

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