In 1983, Britain reintroduced a butterfly declared extinct just four years earlier; the large blue has since surged 1,866% and now survives at 33 sites
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September 16, 2026
A butterfly once declared extinct in Britain is now at the centre of one of the country’s most striking conservation success stories. The large blue, which disappeared from Britain in 1979, has been successfully reintroduced and now occurs at 33 sites in…