I lived in some student apartments many years ago that were just overrun with feral cats. I used to call it the cat colony. They were everywhere, easily hundreds of them. We moved out and a couple years later moved back when I went back to school. The cats were gone and raccoons had taken over.Occasionally we have deer and mongoose but the worst are the feral cats our neighbor is feeding. Just feeding. No health care, no fixing, just feeding.
Two litters were born in the last 3-4 weeks.