the dogs were just trying to survive. its pretty much the same in my area. theres a wash that runs directly behind my house all the way up to big bear. lots of coyotes and stray dogs living in there. the people around here that own dogs let them live outside like outdoor cats. so you end up with feral dogs, and just outside dogs breeding, forming packs etc. theres lots of truckyards here too, some of them feed the dogs a bit im sure but no way they can feed ALL the dogs. so you have strays, ferals, and like borderline feral dogs i guess.