Bruce's green pigeon

Bruce's green pigeon (Treron waalia), also known as the yellow-bellied fruit pigeon or the yellow-bellied green pigeon, is a species of bird in the family Columbidae. It is found in Benin, Burkina Faso, Cameroon, Central African Republic, Chad, Democratic Republic of the Congo, Ivory Coast, Djibouti, Eritrea, Ethiopia, Gambia, Ghana, Guinea, Guinea-Bissau, Kenya, Mali, Mauritania, Niger, Nigeria, Oman, Saudi Arabia, Senegal, Somalia, Sudan, Togo, Uganda, and Yemen. It is often found on farmland and near rivers. It is a frugivore bird species that specialises on eating the fruits of a single species of fig tree, Ficus platyphylla. Unlike most birds, it does not have a uropygial gland.

Description
Despite its name, Bruce's green pigeon is mostly grey with a light yellow breast and olive green upper wings.