Tilda remained there for some time.
In the end, I went back, opened the run door,and she hopped in. She received a sharp peck on the head from Roobarb, then she started rooking for corn. I went and had my dinner.
As soon as i'd eaten, I went back to see how she was. She was under a bench - her usual position for keeping out of beak range. I called her. She looked at me. Did she need rescuing? Custard was sitting behind the bench, maybe she couldn't risk moving? I opened the run door and called her. She looked away. I shut the door and watched, she continued to ignore me. I left her for a while.
About an hour later, DH came in and said Tilda might be ready to come in, she had been standing by the dustbath. I put on some shoes, and DH called to cancel the suggestion. She was busy rootling about, and the others were still up.
I decided to leave it until the others had gone to bed. We've done this a few times over the last several months, and Tilda waits under the bench for me to collect her.
Perhaps I should not have done so......