"In 1997 there were thought to be just 11 mating male bitterns, now the RSPB say there are twice that number on the Ham Wall site alone, 50 in Somerset and 239 in the UK."
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https://www.bbc.co.uk/news/articles/cp8x66ze52mo
#Somerset
https://www.bbc.co.uk/news/articles/cp8x66ze52mo
Ham Wall: Nature reserve helped recovery of bittern species
A nature reserve is celebrating its 30th anniversary and the success of bringing back the bittern.Clara Bullock (BBC News)