Hi guys, Today I got a a new frizzle and silkie for my silkie hen because her 'sister' got taken by a fox and j didn't want her to be alone. My white hen (whom I've had for a while) hasn't had problems previously with frizzles but she keep violently pecking the new black frizzle in the neck. Should I interfere? Is this natural? Is it hurting her? How best should I introduce them? Tips?