I don't want to cause problems between you and dad I just think since she is eating good and enjoying her bath she must be feeling good and if you care for the wound properly which it sounds like you have and it's not infected. Then she will heal. If you could get some Blue Kote you could spray...
It doesn't look too bad ,doesn't look infected? How is she acting? eating good? using iodine it should be watered down to look like weak tea. but keep using it or if you can get something called Blue Kote, it has gentian violet in it it is great for healing or another product called Veterycin...
I can understand exactly what your saying, but sounds to me like she is doing pretty good if she is enjoying a rummage in the garden daily. Your doing great, I'm sure there is some pain with this after all they are living an breathing. how do you feel things are going?
Not sure if you should give up so soon. I tell you they are amazing, sometimes the wound just heals up too soon, can you keep her clean and free of flies? [if you have any this time of year] but anyway why not just keep treating and keeping the wound clean and give her a chance. Unless you feel...
Okay thanks for clarifying How is she doing today? forgot to mention ducks are amazing how they can recover from some horrendous attacks and wounds so don't give up on her.
https://www.backyardchickens.com/t/940378/very-injured-duck-in-need-of-help
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I would never have my ducks and chickens locked up in same house, I have some Large fowl hens that I have seen even go after my large Scovy drakes and the drakes run from them. I can't imagine if it was an outside predator that it would kill a large Pekin duck instead of going after your smaller...