Had several chipmunks around . Now the chipmunks and the rat and mice poison are both gone . I hated to poison them but they had to go .
The Human population as whole has created the rodent populations in the suburbs to flourish. Raptors, foxes, etc. need silence and wide open visibility. With buildings and traffic, noise, activity; they are limited to controlling them in a natural way. Their territotories are limited.
Natures ways of keeping infestations under control will prevail compared to what man can do. We create an impact but it always returns later on.