The Guardian, and Daily Mail report last year was the third good summer in a row for butterflies and the 10th best since records began, but one-third of Britain’s species are still in long-term decline.

Conservation scientists warned against overstating the butterfly boom, saying perceptions of a “good” year have lowered in the light of plummeting insect numbers. “Perhaps because of the sunny spring weather last year and the fact that more people were enjoying nature as part of their day-to-day activities, butterflies seemed more numerous,” said Richard Fox, of Butterfly Conservation.