Richard Grimmett and Tim Inskipp are ornithologists and conservationists, and experts on the avifauna of the Indian subcontinent. They have written or co-authored many field guides for Helm over the course of more than thirty years. Paul Thompson is a birder and tour leader. Now based in the UK, he was formerly resident in Dhaka, Bangladesh, where he undertook research and development projects related to natural resource management, floodplains and conservation. Paul became an expert on the country’s birds, helped establish Bangladesh’s first community managed wetland bird sanctuary, and currently advises Wildlife Conservation Society’s Bangladesh programme.