Lately I separated Christa and Joyce for Joyce to go to her vet appointments. Christa was not happy about it and was vicious all day long.I think she misses her three friends who arrived with her. They stuck together, even roosted in the small coop together.
So, I let them both pile into the carry basket at the end of the day and both go to the early evening vet appointments together, then they sleep together in the basket overnight. Christa is far, far happier.