White Throated Bee Eater.

Dextrous and elegant in flight, White Throated Bee Eaters breed in semi- desert habitats on the Southern edge of the Sahara and migrate to Equatorial Africa in the winter. Their diet consists typically of bees, wasps and hornets, they nest communally with both parents feeding the young with help also provided by non-breeding adults.
They are the only Bee Eater with a black crown; they can often be located by their high pitched and far carrying rattle-like call.