Large clouds of painted lady butterflies are being spotted across the UK and Ireland – and experts believe we are seeing a mass emergence that happens every 10 years.
Source: Painted lady butterflies emerge in once-a-decade phenomenon – BBC News
Large clouds of painted lady butterflies are being spotted across the UK and Ireland – and experts believe we are seeing a mass emergence that happens every 10 years.
Source: Painted lady butterflies emerge in once-a-decade phenomenon – BBC News