Oriolus oriolus oriolus
Mathew gives only one definite records, at Goodwick, May 1870 (this should be April 1870). One Caldey, May 1922 (Wintle - 1924 "Some Caldey Birds").
R.M.Lockley, G.C.S.Ingram, H.M.Salmon, 1949, The Birds of Pembrokeshire, The West Wales Field Society