Gosling leg/foot problem?

[GEESES Peanut Butter Cup]

One of my goslings seems to have a leg or foot problem and has been standing with its left leg a lot (as in the video). I don't know when it started, but I hadn't noticed it until yesterday (May 30th PDT) afternoon.

We looked at its right foot from the toes to the hock but didn't find the cause. It might be internal or located in another part of the leg or not easy to see.

We've confined all the goslings for the hurt gosling to rest while having companions.

The hurt gosling still eats, drinks, and cleans itself.

There are few bird vets here (the Portland, OR metropolitan), and I haven't found one with in-home service.

What might be the cause? What can I do?

Update:

The gosling puts its center of gravity force on its left leg most of the time whether it's walking or not, but this morning (May 31st PDT) I saw it standing with its right leg only while it's cleaning its left foot. I'm suspecting it has a sprain but don't really know.

 

[guineapeeps]

One of my goslings seems to have a leg or foot problem and has been standing with its left leg a lot (as in the video). I don't know when it started, but I hadn't noticed it until yesterday (May 30th PDT) afternoon.

We looked at its right foot from the toes to the hock but didn't find the cause. It might be internal or located in another part of the leg or not easy to see.

We've confined all the goslings for the hurt gosling to rest while having companions.

The hurt gosling still eats, drinks, and cleans itself.

There are few bird vets here (the Portland, OR metropolitan), and I haven't found one with in-home service.

What might be the cause? What can I do?

I am about the farthest thing from a goose or duck expert but thought I’d mention this because I have been seeing it all over BYC lately. I recently read about niacin deficiency in waterfowl and saw that it can cause lameness and deformation. I know it needs to be corrected very quickly to get good results, so thought I’d just mention it just in case.
This may not be the case at all but wanted to put it out there because fast treatment is so important.

https://www.purelypoultry.com/blog/niacin-deficiency-in-young-waterfowl/

https://metzerfarms.blogspot.com/2011/03/are-my-ducklings-leg-problems-due-to.html

 

[GEESES Peanut Butter Cup]

I am about the farthest thing from a goose or duck expert but thought I’d mention this because I have been seeing it all over BYC lately. I recently read about niacin deficiency in waterfowl and saw that it can cause lameness and deformation. I know it needs to be corrected very quickly to get good results, so thought I’d just mention it just in case.
This may not be the case at all but wanted to put it out there because fast treatment is so important.

https://www.purelypoultry.com/blog/niacin-deficiency-in-young-waterfowl/

https://metzerfarms.blogspot.com/2011/03/are-my-ducklings-leg-problems-due-to.html

Thanks for the reminder.

The geese had been on Mazuri Waterfowl Starter until less than 1 week ago, when I started transition the feed to Home Grown All-Purpose Poultry Crumble (https://www.farmstore.com/product/home-grown-all-purpose-poultry-crumble-50-lb) and have planned to feed them Mazuri Waterfowl Maintenance once they're fully feathered.

I just sent an email to Purina to ask about the niacin level of Home Grown All-Purpose Poultry Crumble just in case and will give the geese some NatureWise All Flock starting today (based on the info at https://www.backyardchickens.com/threads/nutrena-all-flock-niacin-level.1255887/).

Still, what might cause my gosling's issue and what else can I do?

 

[Ebony Rose]

Is that dirt / poop or just a shadow on the video on the underside of that injured foot, or could it be bumble foot?

 

[GEESES Peanut Butter Cup]

Is that dirt / poop or just a shadow on the video on the underside of that injured foot, or could it be bumble foot?

It's probably just a shadow. We checked the bottom of the foot and didn't see signs of bumblefoot.