Black-headed Gull – 2012 winter

Chroicocephalus ridibundus – GWYLAN PENDDU – Winter visitor and passage migrant, formerly bred.

This map was produced by the West Wales Biodiversity Information Centre using data collected between November and February for the BTO Atlas 2007-11, with additional data collected in 2011-12 winter to fill gaps in coverage.

More about the Black-headed Gull in Pembrokeshire