Wren - 1980s winter

Sunday, October 9, 2011 at 10:50PM
Pembrokeshire Avifauna committee in 1980s BTO winter atlas, GHR, Wren

The BTO winter atlas showed that Wrens 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 25 birds seen in a day.

Graham Rees 

Article originally appeared on Birds in Pembrokeshire (http://pembsbirds.squarespace.com/).