The African green pigeon (Treron calvus) is a species of bird in the family Columbidae, and one of 5 green pigeon species in the Afrotropics. The species has a wide range in Sub-Saharan Africa with around 17 accepted races.
A plump pigeon with green wings and back, dull burgundy shoulders, and a whitish bill with a red base. It prefers forest and thicker woodland, where nomadic groups congregate in fruiting trees, especially figs. They clamber around clumsily like parrots but can remain well hidden. When disturbed, they explode from a tree and fly quickly and directly. Often detected by their amusing song, which includes whinnies, clicks, whistles, cackles, and growls. African Green-Pigeon lacks the bright yellow belly of the similar Bruce’s Green-Pigeon.
Sources : Wikipedia / ebird