Blue-tailed Bee-eater, like other bee-eaters, is a richly-coloured, slender bird. It is predominantly green; its face has a narrow blue patch with a black eye stripe, and a yellow and brown throat; the tail is blue and the beak is black. It can reach a length of 23-26 cm, including the two elongated central tail feathers. Sexes are alike.
Blue-tailed Bee-eaters usually forage in open habitats near freshwater as well as coasts. Blue-tailed Bee-eaters roost together and a roost may include huge numbers (roosts of hundreds have been observed). They prefer to roost in tall trees inland, as well as in mangroves.
Bee-eaters catch their prey on the wing. They look out for suitable prey from a tree branch or high wire (about 7m and above) then swoop down onto it. They snap up their victims with an audible click, their long, narrow bills keeping these dangerous prey a good distance away from the eyes. To get rid of the sting, the insect is vigorously whacked against the perch. Or simply squeezed to get rid of the venom.