There are a lot of confounding factors in ecosystems at the edges of urban areas. I live in the Massachusetts exurbs, and have seen fluctuations in the population of deer, wild turkeys, and coyotes.

I've also seen some very well secured trash bins in Tokyo, so Japan clearly has wildlife even in urban areas that's very interested in the contents of trash bins.

I used to have a committee of four farm dogs visit my kitchen scrap pile every morning to sniff around. Now they are all in their separate invisible fence boundaries. So, more coyotes, fewer turkeys? I see more turkeys in some closer in suburbs and the neighborhoods of Boston.