I have eleven, 9 week old pullets, and six, 6 week old ducks that I need to integrate with my four hens because they're outgrowing their current living area. I raised them from chicks/ducklings inside a brooder in our house, then moved them to a fenced off part of the big chicken coop about three weeks ago in hopes that the four big hens would get used to them. I attempted to put the pullets/ducklings into the big girl coop a few evenings ago, and the lowest hen on the totem pole attacked the pullets, pulling out feathers and scaring them half to death. They didn't seem to care so much about the ducks, the ducks are pretty huge at this point, and the pullets were easier pickin' - though the ducks were still scared. So I gathered the terrified pullets/ducklings up, and put them back into their enclosed area of the coop. My big girls free range, and the area I have fenced off for the pullets has its own door out of the coop. So I was considering letting everyone out to free range, then go back into their individual coops at night. After a few days of doing this, THEN move them into the big coop. I'm concerned that if I put them in the enclosed coop with the big girls all night by themselves, that one or two of them might end up dead or badly injured. Don't know what to do, this is my first time ever integrating new flock members. Any thoughts, or advice?