Madhav Gadgil was born in Pune in 1942, just as Salim Ali's superbly illustrated Book of Indian Birds was published. Influenced by his birdwatcher father, he learnt to recognize birds from their pictures even before he could read. He is an unusual combination of a person fascinated by the diversity of the natural world, of the landscapes and the life they support, as well as the diversity of cultures and lifestyles of the people firmly rooted to India's...