I am new to the chicken world. We were given two Leghorn Hens about 6 weeks ago, they are a year old, friendly and lay every day. We recently added two new younger hens (frizzle and a barred/cochin/bantam mix) to the coop, they are around 4 months (from what I was told). Our Leghorns are only vocal when they want to be let out of the coop or when they are both preparing and finished laying their eggs. Our frizzle was injured and is now kept inside while she recovers, we were advised to keep her "friend" (the little barred mix) with her to avoid loneliness.........We did this (yesterday was the first day) We took a large kennel and prepared it for them. Our little barred mix chirped (for lack of a better word) ALL day and ALL night. We looked at her in the evening and she appeared to be chirping in her sleep. Is this normal? If so why does she do this? We cover the cage around 7pm because that is what time they would normally retire to the hen house. Could this be why the Leghorns pick on her, because she's a talker???