I'm in Iowa and I have spoken with an Rep from the Iowa state extension office who happens to raise chickens organically and his advice was to just let the chickens be chickens. My plan is to have about 5 birds to start and "pasture" them in my 1000sqft garden. My Grandma and Grandad used to do this and it keep the bugs and weeds down along with the birds are more relaxed and are doing what is natural. I told my grandma about raising them and she told me it "Its not rocket science they're just chickens!" LOL Gotta love her survived the dust bowl and raised 11 kids 93 yrs. old and can still out drink us all and honestly Im still a little scared of her! LOL