Pale-winged Trumpeter

The pale-winged trumpeter is a chicken-like bird with a long neck and legs and a hump-backed profile. It is 45 to 52 centimetres (18 to 20 in) long. Males weigh 1.28 to 1.44 kg (2.8 to 3.2 lb) and females 1.18 to 1.32 kg (2.6 to 2.9 lb). The sexes are similar in appearance. Their stout, slightly decurved, bill is grayish with a yellow base and their legs and feet are pale grayish. They are almost entirely black, with a white hindwing and purple, green, and bronze iridescence on the outer wing coverts.

The pale-winged trumpeter is found in the upper Amazon Basin of eastern Peru, northern and central Bolivia, and central-western Brazil south of the Amazon and west of the Rio Madeira. A single record in extreme southeastern Colombia has not been accepted by the South American Classification Committee of the American Ornithological Society. The species inhabits dense lowland tropical rainforest. Within that broad category it favors landscapes away from human habitations. In elevation it ranges up to 750 m (2,500 ft).

The pale-winged trumpeter is primarily frugivorous. It forages on the forest floor for fallen ripe fruit which makes up 90% of its diet. The remainder of its diet is invertebrates like beetles and ants and occasionally small vertebrates like snakes.