This summer was a “painted lady year”, with almost half a million of the migratory butterflies recorded as part of an annual count, experts have said.
The common blue butterfly could be booming in the UK thanks to recent spells of hot weather, according to a conservation charity.
The UK could be experiencing a once-in-a-decade wildlife phenomenon this year with a mass influx of painted lady butterflies, experts have said.
English-born chequered skipper butterflies are flying in this country for the first time in more than 40 years as part of a conservation project, experts say.
Two butterflies in decline suffered their worst year on record last year as the species struggled in difficult weather conditions, conservationists said.
A butterfly whose numbers have seen dramatic declines in recent years is breeding in Scotland for the first time in 130 years, experts said.