You should look into quail as well. The button quail can be kept in fairly small cages and supposedly breed like madhouses. They can start to breed at 6 weeks (usually not until a little later, but it's possible) and can be fed on turkey or game pellets. They also don't get very big (about 8oz and 5" tall). You could probably feed the birds as well as the eggs. They're also cute as hell... Lol. The only thing is that it can be a pain to get the mothers to nest on their eggs, I guess you have to put them in a seperate box with soil (or coconut fibers) and give fake vines and such for them to nest in. I don't know much more than that about them, I just started looking them up.