Shy, furtive bird that is heard far more often than seen. Shaped like a large manakin; mostly plain greenish-brown with unique large-eyed look. Found in mature rainforest and older second-growth. Often alone but may follow mixed-species flocks; takes low perches and looks around slowly; consumes fruit and insects. In premontane forests of the tepui region, compare with Olive Manakin; schiffornis is substantially larger and more brownish. Call is a slurred, sharply inflected whistle given at long intervals and easily imitated.