Barbets are a species of tropical birds in the family Capitonidae (order Piciformes). Barbets are named for the bristles at the bases of their bills that they use to dig holes in rotting trees where there will nest. They have large heads and short tails and are not agile fliers. They eat insects, lizards, birds’ eggs, fruit, and berries.
The Keoladeo NP has three species of Barbet. I was able to photograph only the Brown-headed Barbet Psilopogon zeylanicus and the Coppersmith Barbet Psilopogon haemacephalus, The third, White-cheeked Barbet was not found.
As these birds sit in very dense leaf trees the light is hard to work with and high ISOs become mandatory.