The numbers of breeding males has topped 100 for the first time since 1997.
Conservationists said there were 104 birds across England, up from 11 just 15 years ago.
Source:http://www.dailymail.co.uk/sciencetech/article-2032947/The-bittern-One-Britains-rarest-birds-returns-brink-extinction-enjoy-best-year-record.html
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