Goose can't open its beak

[Purplesmart]

Hello!
New member, registered just for this issue.

So I have a 1 year old goose, who, as of yesterday, is unable to properly open its beak. I noticed this after I gave my flock some sorrel leaves, that it was struggling to pick them up. It can kinda open it, but only slightly.
It also shakes its head often, and drinks - or just dunks it's head into the water - quite a bit.
Drinking doesn't seem to be much of an issue, but still seems a bit more difficult than normal.
Today I tried very, very, VERY gently to pry open its beak with my fingers, but it's very difficult. Could only open it somewhat. Didn't want to force it, out of fear of breaking something. Couldn't smell anything foul through the small opening.
Also massaged the muscles around the beak.
Tried feeling along the neck, nothing seems amiss as far as I can tell.

I have no idea what to do, google was of no use either. Please help!

Image of what my goose looks like right now, best picture I could do at the moment.

https://imgur.com/a/VPQUBwr

 

[sourland]

Hopefully someone will come along with an answer. I am baffled. Sorry.

 

[BirdsBeesTrees]

@Pyxis ?
@Iain Utah ?
@CindyinSD

 

[Purplesmart]

Here's a video of the drinking (?) behavior and the head shaking. Hopefully it helps.
It does this all day, always in the water. Never did this before.
New observation before I pressed record: Bit of leg shaking while standing. Like how weak people can't stand still for long. Don't know if it was just an awkward footing or a symptom.
Couldn't capture eating, because I haven't seen the poor guy eat yet.
Seems rather extreme, but should I force-feed it?

EDIT: Forgot to mention, it also does these "hiccup" sounds (1:16 in the video). Not sure if it's something, but I've only ever heard my chickens doing that.

EDIT 2: As of now I've poured a thin layer of fine corn grit into every drinking water, in a bid to get some food into the poor thing.

 

[Goosebaby]

Here's a video of the drinking (?) behavior and the head shaking. Hopefully it helps.
It does this all day, always in the water. Never did this before.
New observation before I pressed record: Bit of leg shaking while standing. Like how weak people can't stand still for long. Don't know if it was just an awkward footing or a symptom.
Couldn't capture eating, because I haven't seen the poor guy eat yet.
Seems rather extreme, but should I force-feed it?

I’m wondering if the jaw could be broken or fractured and so inflamed that it’s unable to move it.

 

[Purplesmart]

I’m wondering if the jaw could be broken or fractured and so inflamed that it’s unable to move it.

How would I check for a broken or fractured jaw? Or is that only possible at a vet?

 

[BirdsBeesTrees]

A broken jaw or inflammation is outside the help of people here to help long distance and online. If you could see a vet it would give your Goose the best chance at survival. It can't live long without eating...

 

[Purplesmart]

A broken jaw or inflammation is outside the help of people here to help long distance and online. If you could see a vet it would give your Goose the best chance at survival. It can't live long without eating...

I was very afraid it would come down to that. As far as I know, the vets around here only take common pets.

 

[Iain Utah]

I have no idea what is going on, and agree a vet trip is best option, as I believe condition will be treatable. Where are you located? Lots of avian vets will see geese, and almost all schools with vet teaching hospitals will see/treat geese.

Good luck!!

 

[Purplesmart]

My poor goose passed away today. Buried him next to my dog in the garden.

Only one animal hospital was operational in the whole city, but they mostly took in cats and dogs. What's worse, they were even laughing at a woman who went back for the 4th time with her dog. Terrible place.
Even went to the local zoo, but they didn't care.
Finally got a hold of a proper vet today, but he said there's only a few hours left. The problem was bronchitis, the lungs collapsing due to the air being too damp. He said we could try a drug called Enrofloxacin.
No one in the whole city had it, spent the whole day running after it. Only a slightly out of the way farmer had it, who kindly gave us some. We've administered the drug, but he died almost immediately after. Yesterday I took him out of the pen to run around freely at least once. God, this is hard.

Tl;dr: The problem was that the goose couldn't breathe properly, due to the air being too damp, causing bronchitis. The beak not opening was only a symptom. The solution is a drug called Enrofloxacin, 1ml drug diluted in 1 liter of water, given orally. The vet said it should be given twice every year for a few days, during the spring and the fall to avoid this. Hopefully I could help someone with this information at the very least.