Green Woodpecker - 1980s winter atlas

Sunday, September 18, 2011 at 4:14PM
Pembrokeshire Avifauna committee in 1980s BTO winter atlas, GHR, Green Woodpecker, wildfowl

The BTO winter atlas showed that Green Woodpeckers were present in most 10km squares of their known breeding range 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 3 birds seen in a day.

Graham Rees 

 

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