35 mm slide; color. Scientific Classification: Kingdom: Animalia; Phylum: Chordata; Class: Aves; Order: Gruiformes; Family: Psophiidae; Genus: Psophia; Genus species: Psophia viridis. Animal characteristics: Head-Body Length: 43-53 cm; Weight: 1 kg; Identification: Adults have dark plumage with dark green wingtips, which form a green patch on the back. They have a long neck and legs and a hunchback appearance. Juveniles are reddish with cream upperparts and white stripes; Habitat: Dense tropical rainforest; Diet: Omnivore: fruit knocked to forest floor by primates, insects, such as beetles, ants and termites; Reproduction: The dark-winged trumpeter uses a rare breeding system, cooperative polyandry, in which a dominant female mates with three dominant males and the other adults in the group help feed and care for the chicks. Nests are found in hollow tree cavities. A clutch of about five eggs is laid, and incubation lasts 27 days; Social Structure: Dark-winged trumpeters travel in groups of 3-12 birds; Behavior: The dark-winged trumpeter is a very social bird that uses a complex set of calls to communicate; Status: No special status; Interesting Facts: Dark-winged trumpeters are named for their deep, booming territorial call. The three species of trumpeter are distinguished by the color of their inner wing plumage.