The gatekeeper, one of the UK's most abundant butterflies, has declined by 40% in the past decade
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/uk-butterflies-40-year-slump
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/bbc-uk
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/biodiversity
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/butterflies
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/united-kingdom-uk
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/european-union-eu