Cygnus cygnus
Mathew gives only undated records from Pantyphillip and Stackpole. H.A.Gilbert records it 24/28 Jan 1933, Cosheston - these birds were seen at Garron pill 29 Jan 1933, by R.M.L. A pair at Dowrog Pool, 26 Jan 1948 (A.Howell)
R.M.Lockley, G.C.S.Ingram, H.M.Salmon, 1949, The Birds of Pembrokeshire, The West Wales Field Society