Bee Eater birds in Sri Lanka.

The bee-eaters are a group of near-passerine birds in the family Meropidae. Most species are found in Africa and Asia but others occur in southern Europe, Australia, and New Guinea. They are characterised by richly colored plumage, slender bodies, and usually elongated central tail feathers. All have long down turned bills and pointed wings, which give them a swallow-like appearance when seen from afar. There are 26 different species of bee-eaters.

As the name suggests, bee-eaters predominantly eat flying insects, especially bees and wasps, which are caught in the air by sallies from an open perch. While they pursue any type of flying insect, honey bees predominate in their diet. Hymenoptera (ants, bees and wasps) comprise from 20% to 96% of all insects eaten, with honey bees comprising approximately one-third of the Hymenoptera. 

Before eating its meal, a bee-eater removes the stinger by repeatedly hitting and rubbing the insect on a hard surface. During this process, pressure is applied to the insect thereby extracting most of the venom.  Notably, the birds only catch prey that are on the wing and ignore flying insects once they land.

Bee-eaters are gregarious. They form colonies by nesting in burrows tunneled into the side of sandy banks, such as those that have collapsed on the edges of rivers. Their eggs are white and they generally produce 2–9 eggs per clutch (depending on species). As they live in colonies, large numbers of these holes are often seen together, white streaks from their accumulated droppings accentuating the entrances to the nests. Most of the species in the family are monogamous, and both parents care for the young, sometimes with the assistance of other birds in the colony, a behavior considered unusual for birds.

Out of these 26 species in Sri Lanka you can spot three namely - Green Bee Eater, Blue Tailed Bee Eater and Chest Nut Headed Bee Eater mainly in lowland or dry climate forests like Wasgamuwa, Kumana, Yala & Wilpattu National Parks.

Green Bee Eater.

Blue Tailed Bee Eater.

Chest Nut Headed Bee Eater.