Mergus serrator
Mathew knew of no dated or recent record, but Mathias and Dix included it in their lists. H.E.Evans obtained four in Solva Harbour over a period of fifty years. An immature male shot Teifi Estuary 20 Oct 1909 (B.Birds XVIII 234). One male, Dale, 8 Mar 1937; one 10 Feb 1938; two 13 Feb 1940. Seen regularly in upper reaches of Milford Haven in winter (H.A.G and R.M.L.).
R.M.Lockley, G.C.S.Ingram, H.M.Salmon, 1949, The Birds of Pembrokeshire, The West Wales Field Society