I'm new to chickens and just brought three home last night. The Buff Orpington is 12 weeks old and although she runs to the screen door when I approach the coop and will chat with me while I'm on the other side, as soon as I open the door she starts flapping and squacking and running away. When I put my hand towards her she pecks me. Any suggestions on how to get her to settle with me? She was raised in a barn with lots of "siblings". Our Wyandotte and Barred Rock are only six weeks and much tamer.