Bonaparte's Gull at the Gann, (c) Brian Southern

Bonaparte’s Gull – 1994

Larus philadelphiaGwylan Bonaparte – Vagrant

One was shot at Solva in the spring of 1888 (Lockley et al 1949).  Mathew (1894) seems not to have been aware of this species, nor indeed of the bird collection of H.W.Evans of Solva in whose hands it remained.

Donovan J.W. & Rees G.H, 1994, Birds of Pembrokeshire

More about the Bonaparte’s Gull in Pembrokeshire