Capella gallinago gallinago
Resident on suitable moors and mountain marshes. Numerous arrivals in autumn and winter. A regular visitor and passage migrant on the islands, and occasionally breeds on Skomer, Skokholm and Ramsey.
R.M.Lockley, G.C.S.Ingram, H.M.Salmon, 1949, The Birds of Pembrokeshire, The West Wales Field Society