I'm really sorry to hear your story- A loss of a beloved no matter what it is will always be hard. To have your new ducks trust you try to constantly feed them, have them associate you with safety/food so you'll have some happy ducks in no time!
Do make sure you check on her every maybe 2 hours or less? Or you can just do it every day once if you sense that she's doing good.
Your main opponent to this situation is a possible infection or more maggots growing on her leg knub, make sure you do apply some sort of medication.
I completely...