Larus hyperboreus
Mathew records one short near Tenby "many years ago" and another threre in the winter of 1891. One shot Solva about 1870 and one seen same place 24-26 Jan 1913 (H.W.Evans). One shot Pembroke River by J.Wynne 28 Dec 1899. One Dale, 10 Feb 1938, and one immature at the Stacks, Flimston, 14 May 1943.
R.M.Lockley, G.C.S.Ingram, H.M.Salmon, 1949, The Birds of Pembrokeshire, The West Wales Field Society