raingarden
Crowing
Another old book (can't remember which one) talked about feeding "caterer's waste" which I took to be similar to the school cafeteria waste that pig farmers used to be allowed to use when I was a kid. It is probably against the law, but restaurant garbage might be a complete poultry ration when you consider how much protein and variety it contains. It doesn't seem like we eat very much soy or corn in a restaurant these days, except for the corn in a Mexican food place.