There are about 25-30 feral cats living in the alley behind my house and they keep reproducing. I just realized upon seeing a 2-3 month old kitten that there's been a 4th litter since I moved here in May. They all seem pretty happy and are in a relatively safe location, but they are just going to keep breeding. I don't want to bust up their family. I'd love to be able to trap-alter-release them all, but I can't even tell the difference between a handful of them and have no idea how one is supposed to go about tackling a population this large. This morning I counted ten of them playing pawsy with my own indoor former stray cat through the crack between the floor and the kitchen door. I've emailed the 3 feral organizations I could find in my area (Los Angeles), but haven't heard back from any of them yet. Do any of you have any suggestions about this? Please?