* Madge, Steve; McGowan, Philip J. K. & Kirwan, Guy M. (2002): "Pheasants, partidges and grouse : a guide to the pheasants, partridges, quails, grouse, guineafowl, buttonquails and sandgrouse of the world".
* "Madge S., McGowan P., Kirwan G. M." Pheasants, Partridges, and Grouse: A Guide to the Pheasants, Partridges, Quails, Grouse, Guineafowl, Buttonquails, and Sandgrouse of the World.