Hi! We just got 5 new pullets (about 14 weeks) yesterday, and I noticed this afternoon that one of our birds (Brahma) is missing some tail feathers. One of the other girls is also missing a few, I’m not sure if someone is pecking (we did have one existing chicken who is about 2-3 years old) or if their feathers are coming in? They are all different types of layers but were raised together. Thanks in advance for your help!