Aww poor Matilda. I'd keep her in that cage for a bit longer so she could heal. My Pearl injured her leg jumping from a roost and did a FAIL. When I let them all out to forage she would sit on the ground and peck at things, get up a little & limp over to another spot and do the same thing. Her buddy Ruby would hang with her so she wouldn't be lonely.
I think it was 3 weeks or so until she was able to use her leg like normal. I would put some crushed aspirin in her water, that seemed to help her.
Good luck with your bird, I hope she'll be all right. Any more ideas on the mystery pred?

Good luck with your bird, I hope she'll be all right. Any more ideas on the mystery pred?