What additional foods can be fed to chickens and ducks besides commercial food? I assume you can feed them table scraps, but is there anything that should be avoided, say the way one should avoid feeding a dog chocolate or grapes, for instance? If my dream of having poultry is to come true, avoiding expense is going to be very important, not only in building a coop, but in keeping it going. I have read about using pine shavings. I dont think Ive ever seen that, but I assume this is something bought commercially. It is also not very easy to find wheat straw here. Could I use pine straw, which is available free in abundance? I do have access to shredded paper.