Usually, lack of insects near humans is because humans destroy or remove their habitat and food - mainly decaying plant matter (fallen trees especially). Insect

Usually, lack of insects near humans is because humans destroy or remove their habitat and food - mainly decaying plant matter (fallen trees especially). Insect populations then dwindle, which means bird populations do also. If birds start to reappear because of backyard bird feeding, I bet the insects were already gone (or the birds wouldn't have disappeared in the first place)