Branta leucopsis
Mathew records it as a winter visitor which generally arrived at Goodwick Sands about 1st October. Also recorded from Orielton, 1855 and 1877; and from St David's Dec 1893. Seen passing at sea off Skokholm in winter.
R.M.Lockley, G.C.S.Ingram, H.M.Salmon, 1949, The Birds of Pembrokeshire, The West Wales Field Society