The UK public has been asked to take part in the world’s largest butterfly count, to see if the nation is experiencing a once-in-a-decade phenomenon.

Butterfly Conservation said unusually high numbers of the painted lady butterfly had been spotted flying from Europe to the UK. They usually fly to Britain in the summer, but every 10 years millions arrive in a mass migration.

Click here to read the rest of the article.: Big Butterfly Count: Which common UK species to look for – BBC News