Sunday
Oct092011
Long-tailed Tit - 1980s winter atlas

The BTO winter atlas showed that Long-tailed Tits 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 16-28 birds.
Graham Rees
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