endangered Shetland cattle and Shetland goose and the Shetland sheep which is believed to have originated prior to 1000 AD. The Grice was a breed of semi-domesticated pig that had a habit of attacking lambs. It became extinct sometime between the middle of the nineteenth century and the 1930s. See also Lists List of counties of the United Kingdom List of islands in Scotland List of populated places in Shetland About Shetland Mavis Grind Udal law Others Battle of Florvåg Rögnvald Kali Kolsson Timeline of prehistoric Scotland Prehistoric Scotland Constitutional status of Orkney, Shetland and the Western Isles Notes References General references Armit, I.; (2003), Towers in the North: The Brochs of Scotland, Stroud, Tempus, Ballin Smith, B. and Banks, I.; (ed. 2002), In the Shadow of the Brochs, the Iron Age in Scotland, Stroud, Tempus, Barrett, James H.; "The Norse in Scotland" in Brink, Stefan, (ed. 2008), The Viking World, Abingdon, Routledge, Clapperton, Chalmers M.; (ed. 1983), Scotland: A New Study, Newton Abbott, David & Charles Gillen, Con; (2003), Geology and landscapes of Scotland, Harpenden, Terra Publishing, Graham-Campbell, James; (1999), Cultural Atlas of the Viking World, Facts On File, Fleming, Andrew; (2005), St. Kilda and the Wider World: Tales of an Iconic Island, Windgather Press, Gammeltoft, Peder; (2010), "Shetland and Orkney Island-Names – A Dynamic Group ", Northern Lights, Northern Words, Selected Papers from the FRLSU Conference, Kirkwall 2009, edited by Robert McColl Millar Hunter, James; (2000), Last of the Free: A History of the Highlands and Islands of Scotland, Edinburgh, Mainstream, Jones, Charles; (ed. 1997), The Edinburgh history of the Scots language, Edinburgh University Press, Keay, J. & Keay, J.; (1994), Collins Encyclopaedia of Scotland, London, HarperCollins, Noble, Gordon; Poller, Tessa & Verrill, Lucy; (2008), Scottish Odysseys: The Archaeology of Islands, Stroud, Tempus, Omand, Donald; (ed. 2003), The Orkney Book, Edinburgh, Birlinn, Nicolson, James R.; (1972), Shetland, Newton Abbott, David & Charles Sandnes, Berit; (2003), From Starafjall to Starling Hill: An investigation of the formation and development of Old Norse place-names in Orkney , (pdf), Doctoral Dissertation, NTU Trondheim Schei, Liv Kjørsvik; (2006), The Shetland Isles, Grantown-on-Spey, Colin Baxter Photography, Scottish Natural Heritage, (2008), The Story of Hermaness National Nature Reserve, Lerwick Shetland Islands Council, (2005), "Shetland In Statistics 2005", (pdf), Economic Development Unit, Lerwick, Retrieved 19 March 2011 Shetland Islands Council, (2010), "Shetland in Statistics 2010", (pdf), Economic Development Unit, Lerwick, Retrieved 6 March 2011 Thomson, William