Vireo olivaceus – Fireo Llygatgoch / Telor Llygatgoch – Vagrant
A bird at Skokholm on 14 October 1967 (C.Britton) was the fifth of 57 British records of this North American bird, which normally migrates to the north half of South America and has also wandered to Greenland and Morocco (Colston et al. 1991).
COLSTON, P., ALSTROM, P., and LEWINGTON, I. 1991, A field guide to the rare birds of Britain and Europe. London, Collins.