Oxyura jamaicensis – Hwyaden Goch – Feral visitor
This north American species has been kept in several collections, escapes from which started to breed in Gloucestershire before colonising the west Midlands of England in the 1960s and 1970s (Cramp 1977). They became a Welsh breeding species in 1978 and have now been recorded nesting at Anglesey, Montgomery, Radnor, Glamorgan and Camarthenshire (Hurford 1988), the nearest being at Witchet pool, near Pendine (Roberts and Morgan 1986).
The first to occur in Pembrokeshire was at Llysyfran reservoir on 4 February 1979 (T. Gover), followed by singles at the Gann on 9 and 10 December 1982, Bosherston Pools on 26-28 June 1984, Strumble Head on 4 May 1986, Bosherston Pools from 4 October 1986 to 14 April 1987 (which was joined by another from 13 to 26 January 1987), and at Strumble Head on 29 August 1988; there were also three at Nolton Haven on 6-8 December 1987.
CRAMP, S. (ed.) 1977-1993. Handbook of the birds of Europe, the Middle East, and North Africa: the birds of the Western Palearctic. Oxford, Oxford University Press. 7 Vols.
HURFORD, C. 1988. Welsh bird report 1978-1987. Welsh Ornithological Society.
ROBERTS, D.H.V., and MORGAN. I.K. 1982-1991. The Carmarthenshire Bird Reports.