Calidris temminckii
One Tenby 25 March and 27 August 1947 (B.Birds XLI 90)
R.M.Lockley, G.C.S.Ingram, H.M.Salmon, 1949, The Birds of Pembrokeshire, The West Wales Field Society
Note that this must be an error in the book. It actually refers to the same individual bird seen on 25 and 27 August:
Extract from British Birds XLI 90
Pembrokeshire Avifauna 