Cygnus bewickii bewickii
Mathew gives the following records: Trevithan Pool, 10 Nov 1887. five immatures near St Davids, 1887; an immature near St Davids Dec 1890, in which winter many swans were seen; and a herd of fifteen there November 1892, probably of this species.
One other in 1905. No recent records.
Pembrokeshire Avifauna 