I found a beautiful little book in our Official Publications Indian paper collection called "Bird friends and foes of the farmer."
The author a Mr P. Susainathan has devoted years to the observation of bird life. In the preface it states ”It is unnecessary to emphasize the extent to which birds affect all those engaged in farming : but apart from their importance to the agriculturist in this respect they are of absorbing interest in themselves. We all need recreation of some kind”
I particularly like the Shrikes or Butcher-birds. This bird impales its prey on acacia and cactus thorns before commencing to make a meal of it. This bird is beneficial to the farmer!
Another bird is the Hoopoes which like rubbish heaps and termite mounds! The call of this bird resembles the sound “Hoop-hoop” repeatedly. This bird should be encouraged and protected as its love of eating insects helps to reduce the dreaded mosquito.
A bird which is also useful to the farmer and people is the vulture, in particular the smaller White Scavenger Vulture which is a foul feeder on human excreta and dead animals. This bird should be encouraged in towns and villages. However, the parrot family includes a number of bird-pests to agriculture which are a constant menace to standing crops!This little book full of information and illustrations can be found at IP/25/AD.1.