diagnostics
30 cm, 300 g. The sexes are dimorphic in plumage. The adult male has a dark earth-brown forecrown with an olive-green crown. The cheeks and ear coverts are olive-green to yellow-green with the lores matt-black while the head feathers have dusky centres. The tail is a dark slate while the back, rump and uppertail coverts are blue-green. The mantle, scapulars and upperwing coverts are dark green, edged paler green. A band of orange-red coverts extends from the carpal joint to the dark slate primaries. The chin and throat are olive-brown and the upper breast is yellow-green. The lower breast, belly, flanks and undertail coverts are blue-green and the thighs orange-red. The bill is coloured old ivory with a narrow, pale grey cere; the legs and feet are blue-grey. The adult female resembles the male, but has varied forecrown plumage patterns, some having orange across the forehead and others none. The juvenile is similar to the adult bird, but both sexes have salmon pink on the forehead in first plumage, the colour extending further back onto the crown than in adult females. Juveniles lack red on tibia or shoulder (Skead 1971, Wirminghaus et al. 2001, 2002).