Any of the North American genus Cynomys of burrowing rodents in the squirrel family (Sciuridae). They grow to 30 cm/12 in, plus a short 8 cm/3 in tail. Their towns can contain up to several thousand individuals. Their barking cry has given them their name. Persecution by ranchers has brought most of the five species close to extinction.
Although often coloured yellow, the island is intended to be copper, reflecting the country's name, ‘Copper Island’. Effective date: c. September 1960.