I am just starting my chicken adventure! I have 6 4 week old Buff Orpingtons, 3 3 week old Welsumers, and 3 Isa Browns. They have been great so far and friendly gals! Just today I noticed one of my OPs is getting pecked around where her tail feathers will be. I'm not sure how to get the others to quit pecking her. They are out growing their home but the weather has been to frigid to move out yet. Any advice would be great!