My neice, a single mother works for the county of Sacramento. She works at the city dump and has a flock of chickens abot 70 birds as best as she can tell. She feeds them corn which she buys at a pet store and since they are running free and can eat weedseed, insects and grass seed since she supplies them with water I told her they should get enought to eat with out any food other than the corn. They are behind a good fence unless some one leaves the gate open then they come hunting for sissy. she leads them back into the field where they live. Since sacramento is a warm place most of the year I can see no problem in them living off the land. She doesn't know where the first chickens arrived from but the flock has increased under her watch. Sissy drives a bull dozer at the dump. She called me and ask about a hawk that was hanging around but I told her since the chickens could hide in the tall grass and weeds the hawk would not do much damage. I told her it was survival of the fittes and the hawk had to live also.