If one bird foraging in a flock on the ground suddenly
takes off, all other birds will take off immediately after, before they
even know what's going on. The one who stays behind may be prey. Australian Rainbow Bee-eater.
Merops is a large genus of bee-eaters, a group of near
passerine birds in the family Meropidae. The members of this Old World
family are characterised by richly coloured plumage, slender bodies and
usually elongated central tail feathers.Source: Bird Photography