Fulica atra – CWTIAR – Breeding resident, winter visitor and passage migrant
The BTO winter atlas showed that Coots were present in most 10km squares during the winters of 1981-82, 1982-82 and 1983-84.
The darker the colour, the higher the relative total count for each 10km square. The darkest blue represents over 119 birds, up to 300 being noted at Bosherston.
Graham Rees. Pembrokeshire County Bird Recorder 1981-2007
Data collected by volunteers for the BTO. Lack, P. 1986 Atlas of wintering birds in Britain and Ireland. T & A.D. Poyser.