Greater Racket-tailed Drongo

The greater racket-tailed drongo is a medium-sized Asian bird with elongated outer tail feathers whose webbing is restricted to the tips. It is conspicuous in forest, often perching in the open and attracting attention with loud calls that include perfect imitations of many other birds. One hypothesis is that the mimicry helps form mixed-species foraging flocks, and another that it helps the drongo steal insects caught by other foragers (Wikipedia, general species account).

It is diurnal but active well before dawn and late at dusk. Its wide range and distinctive regional variation have made it a classic example of speciation by isolation and genetic drift (Wikipedia, general species account).