Blue Bellied Rollers (Coracias cyanogaster)
The blue-bellied roller (Coracias cyanogaster) is a member of the roller family of birds which breeds across Africa in a narrow belt from Senegal to northeast Democratic Republic of the Congo. It is resident, apart from some local seasonal movements, in mature moist savannah dominated by Isoberlinia trees.
The blue-bellied roller is a large bird, nearly the size of a jackdaw at 28–30 cm. It has a dark green back, white head, neck and breast, with the rest of the plumage mainly blue. Adults have 6 cm tail streamers. Sexes are similar, but the juvenile is a drabber version of the adult.
The blue-bellied roller is striking in its strong direct flight, with the brilliant blues of the wings contrasting with the dark back and cream colored head, and the tail streamers trailing behind. source