Yellowhammer - 1980s winter

The BTO winter atlas showed that Yellowhammers 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 75 birds seen in a day.

Flocks found at a good seed source provided the largest numbers. 

Graham Rees