I have a flock of 3 hens that are 1 yr old. (E.E., LB. Australorp) they came from the same farm but were in different coops. They have established their pecking order 1.LB, 2.E.E. and 3.AustraIorp. I recently just added a 7-8 month silkie hen. The LB and Australorp are pecking the poor thing and chase her around the coop but the EE doesn't seem to be bothered at all. How long does it take for the existing hens to accept the new one? They don't seem to bother her when they go into the hen house at night. We built a platform in the run for her to "escape" from the hens. Any advice would be greatly appreciated. Thank you so much.