A capon's a castrated male chicken. Surgical caponising (complete removal of both testes)'s performed when the chicken's 2 to 4 weeks old. Capons are marketed at 15 to 18 weeks, commercial broiler chickens at six to eight weeks, and roasters in about eight weeks. See University of Florida IFAS Extension Fact Sheet PS-54/PS051: Capons by Jacqueline Jacob and F. Ben Mather for detailed information about the process of caponisation and statistics of production. Caponisation produces a bird prized… (More on Capon)