Arctic Skua - 1949

Stercorarius parasiticus

Mathew records in immature shot at Goodwick (no date).  Occasionally seen Skokholm, and off Grassholm, usually in Aug-Sept, sometimes May-June.

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