Thank you
@SmiYa0126 for the dosage info. You can pop the whole 250mg into her beak at once or divide it into two doses 10 to 12 hours apart. If you're busy like most of us, the one 250mg dose will do the job. Do it for ten to fourteen days.
I agree that special high protein feedings would help. Egg, tofu, mackerel, tuna, sauteed rat, etc. (Kidding about the last one, sort of.) This can help her immune system.
Have you heard of roller bucket traps? They are easy to set up, no maintenance, and can catch multiple rats a night. The bucket is filled with about four to six inches of water and they drown. Makes disposal easy. Roller is available on Amazon for about $10.