It's stuff like this that makes Wikipedia a bad source. An educated guess is that it has to do with improvements in aerodynamics. The politically motivated editors here would rather reference The Guardian as evidence. "Hear those noises in the attic? It must be ghosts."
⭐ Starknet Whitelist Registration is now live. ⭐ https://telegra.ph/starknet-10-10 Claim Your free $STRK.
Actually this is a good entry: it documents something that the internet community noticed, it's not the other way around :). And yes, they have been disappearing un huge numbers for decades, there are countless studies to show that and tbo I don't really need a study, I remember when they were a lot more :). https://phys.org/news/2023-08-human-insect-declines-europe.html