I have 22 hens and 2 Roosters. They are all picky scrap eaters and most of the stuff I've read that other peoples chickens won't eat mine won't either. I find the bread thing very funny. My chickens favorite food is bread but not white bread. I hand feed my roosters bread and toss the hens bits at a time. Their favorite is flax buns and I figure it has to be good for them. I read once that if you give chickens a 10% diet of flax seed they will produce omega 3 eggs. I also read from a very old chicken lady that chickens won't eat mushrooms if they are poisoneous and that they can eat hot spicy food because they don't taste the heat in it. I don't know about that because like onions I don't want a funny taste in my eggs so I don't feed it to them.