Cuckoo and Koel: Cuckoos are a medium sized slender bird and all species live in trees, although their feeding habits take them on ground as well where they are seen picking earthworms and other insects. mostly they feed on insects, caterpillars and other tree-worms.
Almost all species found in India are resident and some carry out small migrations.
Cuckoos / Koels are known to be brood parasites and said to be laying their eggs in the nests of other birds but not an evident fact by rule, but the majority of species raise their own young in their own build nests.
Koel is a very known Indian bird and famous for its repeated calls raising “Ko-eu — Ko-eu`—“
Barbet: Barbets are a fascinating species and known for their voice calls which is monotonous, far-reaching and goes on for hours. Barbets sit stolidly in treetops when not feeding (insects, lizards, eggs, fruit, and berries) and continue whih their calls.
Coppersmith Barbet’s call is a loud rather metallic tunk…tunk…tunk reminiscent of a copper sheet being beaten, giving the bird its nameand also are the most common type in India along with Brown headed Barbet.
Great and Blue throated Barbet are found in Himalayas and White cheeked in southern coast, rest are a rare watch.
List of Cuckoo, Barbet and Coucal