https://www.theguardian.com/environment/2026/apr/15/butterfly-monitoring-scheme-britain-decline. "More than 44m #butterfly sightings scientifically collected in #Britain since 1976 show that of the 58 native #species recorded, 33 species have declined & 25 have increased in number... #Habitat loss & #pollution are driving #declines, but #globalheating is often playing an indirect role."