Richard Grimmett & Tim Inskipp 
Field Guide to Birds of Pakistan [PDF ebook] 

This guide is a successor to the much acclaimed Birds of the Indian Subcontinent by two of the same authors.Covering Pakistan, the superb plates are accompanied by a succinct text highlighting identification, voice, habitat, altitudinal range, distribution and status. The text is on facing pages to the plates, for easy reference and there are distribution maps for every species. Like previous guides covering Nepal, Bhutan, Northern India and Southern India, this guide is a perfect size for use in the field and will be an essential companion when visiting this region.