Size: L: 45 cm. Wt: 200-250g. Males and females similar. This species is not seasonally dimorphic.
Adult: back and sides of neck chestnut brown; dark green upperparts and crown; upper mandible black, lower yellow; white throat and breast; legs yellow.
Juvenile: throat and breast streaked brown and white; lower mandible darker; chestnut on neck paler; upperparts and crown brownish-green, some mottling on back.
Nestling: semialtricial and downy; down on upperparts dark grey, thick on back, and bushy on head; down on underparts pale grey, thin.