Not so solitary confinement.
So...Long-mu spent the night alone in her box and this morning I let her out in the garden. She went straight over to the chicken run and the other hens came to the fence to see her. I relented and lifted her in with the others and she ignored them and went straight inside and into the nesting box with Dou-mu.One night in the box alone had not cured her so I lifted her out again. Where we put her box was too close to the pen and she could still hear Dou-mu's chicks calling so we have moved the box away from the house and we have put Wuji-mu in with her.