As far as the pecking goes, I found a lotion that you apply to the chick that is being picked on, i used it on all 29 of my 5 wk old chicks, the bick chicks got a taste of it the very first peck, they would rub their beak in the grass and drink water and eat some starter, after that, they would run up to the little ones and hit the brakes just before pecking, they still chase them some, but only one peck all day, the name is Pick No More Lotion( Reduces cannibalism in domestic poultry,) i applied it to their tail, wing tips, neck and back, it definately has a smell to it. it appears to work pretty good, go to www.roosterboosterproducts.com and check it out