Could she have been attacked by a predator? did your friend look her over for wounds or any injuries to her legs feeling for broken bones etc? Does the friend have drakes If so how many and how many females? could she have been over-mated? Does the duck normally lay eggs?
What all has she done so far to help her duck? Meds, vet ?
Not a predator, her area as far as I know is a covered deck area, she said her partner went out and saw her flapping around on the ground with the other birds just watching her
I don’t know for sure what all her birds are, she has some other girls, geese and at least one boy I think,
she doesn’t have any visible injuries legs aren’t broken but seems like it’s the right leg she has the most issues with, we live in different countries so I’m not actually there, she’s tried giving mushed foods, peas, mealworms anything ducks are normally interested in,
Coconut oil, mushy thin dog food, medicated fish food with oxytetracycline and nutrients in her water, lots of electrolytes, ordered baytril because she though she had pneumonia (I don’t think the baytril has actually arrived in mail yet) she’s also brought her outside who have some fresh air and sun.
unfortunately that’s really all the info I have at the moment I can get more info from her later. I just want to see the duck get better if she can
Edit to add, there are no vets around her either, she did email one because a friend told her it’s possible she was crushed by a goose and may have a punctured or collapsed lung or leaking air sacs, but she hasn’t heard anything back from the emailed vet.