Anser fabilis brachyrhynchus

Mathrew includes it in brackets.  W.F.Bentley considers it a winter visitor in small flocks but there are no definite records.

R.M.Lockley, G.C.S.Ingram, H.M.Salmon, 1949, The Birds of Pembrokeshire, The West Wales Field Society

More about the Pink-footed Goose in Pembrokeshire