Guy Edwardes / Little bee-eater (Merops pusillus) vocalising whilst perched on branch, Khwai, Botswana.

Wim van den Heever / Little bee eaters (Merops pusillus) two, with one landing on branch with a fly in its beak. Okavango Delta, Botswana

Peter Blackwell / Seven Little Bee-eaters (Merops pusillus) in a row, one facing away, Masai Mara, Kenya.

Oscar Dewhurst / Green bee-eater (Merops orientalis) pair perched on branch, facing opposite directions. Karnataka, India.

Andy Rouse / Green bee-eater (Merops orientalis) flying, Ranthambhore, India.

Mary McDonald / Green bee-eater (Merops orientalis) taking off to catch prey, Bandhavgarh National Park, Madya Pradesh, India.

Ashish & Shanthi Chandola / Little green bee eater (Merops orientalis), Yala National Park, Sri Lanka.

Ashish & Shanthi Chandola / Little green bee eater (Merops orientalis), Yala National Park, Sri Lanka.

Sean Viljoen / Slow motion clip of a Little bee-eater (Merops pusillus) taking off and landing from a twig, Moremi Game Reserve, Botswana.

Sean Viljoen / Slow motion clip of a Little bee-eater (Merops pusillus) taking off and landing from a twig, Moremi Game Reserve, Botswana.

Sean Viljoen / Slow motion clip of a Little bee-eater (Merops pusillus) taking off and landing from a twig, Moremi Game Reserve, Botswana.

Sean Viljoen / Slow motion clip of a Little bee-eater (Merops pusillus) landing on a twig, Moremi Game Reserve, Botswana.