I’ve been driving through farmland in central North America recently and have been struck by the lack of insects. 30 years ago, a windshield grew thick with locusts and who knows what... not now. In hundreds of miles of backroads saw couple deer and several mice.
It also shocking how little land was left forested and I utilized for agriculture, in a way wildlife could still use the land, in areas like Nebraska (maybe 2-3% and usually only if it can’t be used for crops or cattle). And where they have left patches of forest, it’s used as a hunting area.