We got a Plymouth (barred) Rock hen 4 days ago. We put her in the coop with 6 other hens and a RIR rooster. Every time I got to check on them, the PR is up on the roosts while everyone else is either on the floor of the coop or out in the pen. She gets down sometimes while I'm there or I put her on the floor. When she's on the floor the rooster kind of comes at her and goes to circle her (similar to mating dances I've seen) but she scrambles to get back on the roosting bars. The roo will peck her and gets a bit aggressive towards her so she moves up the roosting bars to the top and the rooster goes away and leaves her alone. Is he trying to mate with her and she just doesn't want it, or is he being aggressive towards her because he doesn't want her there?