Anas crecca – CORHWYADEN – Common winter visitor, passage migrant and scarce breeder
The BTO winter atlas showed that Teals were present in the majority of 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 150 birds seen in a day.
The map demonstrates the variation between numbers of National Importance at the Cleddau Estuary and the occurrence of two or three birds on small ponds.
Graham Rees (County bird recorder 1981 to 2007)
Data collected by volunteers for the BTO. Lack, P. 1986 Atlas of wintering birds in Britain and Ireland. T & A.D. Poyser.