cockerels and for hens. There are five recognised colour varieties: white, silver-grey, red, dark and cuckoo. Gallery See also Dorking Cockerel, public art in Dorking, England that depicts the Dorking chicken References Further reading Thomas William Sturges (1911). The Poultry Manual: A Complete Guide for the Breeder and Exhibitor, second edition. London: Macdonald and Evans. Conservation Priority Breeds of the Livestock Conservancy Chicken breeds Chicken breeds originating in the United Kingdom Animal breeds on the RBST Watchlist