Socializing pullets into flock

[UpstateHenman]

Hello, my exisiting flock is just three 6 year old hens. I have a small two floor coop converted from a child’s playhouse. (I Cannot fit in there and kneel through front door to clean). I raised four pullets beginning in March. I now find the existing hens will not let younger girls up on the roosting bars at night- the four younger birds huddle on first floor. Any suggestions on how i can get older birds to let younger girls sleep upstairs? The older birds will not even let new girls near food when they are around ( i added second feeding station under an umbrella).
Thanks for any suggestions.
Mike

 

[BDutch]

Add /connect another playhouse, a hutch with a roost or a small coop to the current playhouse or run.
They need a safe place where they can go to roost.

Another possibility is to make the playhouse bigger, add roost space and a second entrance. Maybe divide the space until they get used to each other.