I have had chickens for years, the ones I have now are two years old and they are tame, sweet and so on. There are four standard size hens and two small modern game bantam hens they are one year old. Suddenly they are mean to me. The standard hens are pecking my hands and leaving little beak marks and the bantam hens are puffing up flogging and pecking my hands. WHY? Nothing has changed.