How is your Muscovy doing?
I never found help with vets around here so I looked online and I found a great article That shows birds anatomy and how to check for factures. After reading that I checked him and concluded that his foot was broken not the leg.
I made him a shoe and I put splints between his toes and another one from the mid leg going down the foot to prevent him from curling the foot. I covered the shoe with a sock because he was trying to pull the shoe off. He spent a couple of days without being able to walk much. As of today, he is using his foot to walk but still limping. He has been eating and drinking very well and I'm putting vitamins in his water. My boss allowed me to bring him to work with me lol so he has been with me all the time.
I have no idea how to upload videos here but here's a link so you can see how he is doing below. The video was taken 2 days ago.