This book is the result of five years' exhaustive work by the BNHS. The data, which form the core of the book, have been collected by more than 1,000 people: many hundreds of professiona and amateur ornithologists, birdwatchers, conservationists, forest officials, and others interested in birds. It is the most detailed publication ever produced on the subject of birds or conservation and it uncovers, analyzes and assesses all of the evidence, presenting it together with all the sources. The study has given a detailed analysis of sites that have been identified for bird conservation in India on the basis of globally accepted criteria. Each bird area is introduced with maps, analysis, avifauna section with tables of threatened species present, and a brief description of threatened birds, which have important habitats in the relevant states. The study shows that out of 465 important birds in India, 191 wildlife sanctuaries have been idenfitied as IBAs, 52 are national parks, 23 are tiger reserves, while 198 are not officially protected.