I have 3, 9 month old girls in a large coop (2 BLRW, 1 RIR). I have a smaller grow up pen with 3 other small pullets. One of the pullets is a Brahma which is about 4-5 months now, and almost the size of my older girls. She seems too big for the grow up pen. . . so we put her in with the big girls today (They've seen each other through wire for about a month now). They've all pecked her a little bit and she runs away, but it really didn't seem very vicious. The most submissive hen picks on her the most. I know I should not have put her in there alone, but the other chicks are much smaller than her. Tonight I'm hoping they'll all roost together. My worry is come morning, I won't make it outside until 9ish. . . will they pick on her in the coop once it's daylight?? Thoughts?