Pheasants, Partridges, and Grouse: A Guide to the Pheasants, Partridges, Quails, Grouse, Guineafowl, Buttonquails, and Sandgrouse of the World: 18 (Princeton Field Guides)

This book is a great guide for pheasants, partridges, and grouse that also covers quails, buttonquails, guineafowl, and sandgrouse thoroughly. Great illustrations and good information, so it is worth the money. Anyone interested in birds, especially pheasants, should add this to your bookshelf

Very good book on the subject. Gives an excellent overview of the species comprised in this group of birds before getting into books specialized in each family/species.