It's really hard to say, but it sounds neurological. Vitamin/mineral deficiency could be to blame, but and infection like tetanus or e coli could be to blame as well. I'd isolate in a carrier or a box so it can rest give multivitamin in water via syringe, and perhaps some honey/egg mixed with water. Without knowing what the animal was exposed to or bloodworm, anything but supportive treatment is a shit in the dark! I hope it does well and recovers, if you are able to find a local avian vet. You're lucky.
Discussion
She didn't make it. What my research turned up was that it was likely a niacin deficiency but I'm not sure how old the goose was. She came to me because I have chickens. We found a local vet that does exotics but it was already too late.
im sorry
im just reading these notes now
i hope it is a comfort, that when i read the long note my 2nd thought was: oh no! the goose may be imminently dead!
as in, im not sure what could have been done as far as interventions go. even if the goose was already with the vet.
very wonderful of you to try to help the goose & your friend & im sorry for everyone's loss π«
That's sad, and I hate to hear it! There's not much solid info put there on waterfowl the way there is for chickens. Niacin is a big issue when they are young and developing, and I've dealt with that. But once they are grown it is not anywhere near as impavtful, and unfortunately niacin deficiency gets blamed for almost every issue goose owners encounter, which is not helpful. Giving excess niacin usually does not hurt, but it is generally only the issue when they are quite young and usually presents as or with severe leg issues.
Sadly a necropsy is the only way to truly know, and I offer my condolences to your friend π
I was going to say neurological too. But that's just a wag.