That's a good idea about pictures. Where are your other ducklings?
Here is some info on Seizures I'm sorry I don't have a definitive answer for you but honestly only a vet can do that.
https://www.justanswer.com/bird-vet/4dc81-duck-appears-having-seizures-flops.html
Have you given your duckling any niacin supplementation since it hatched? Are you feeding chick starter?
Here is some info on Seizures I'm sorry I don't have a definitive answer for you but honestly only a vet can do that.
https://www.justanswer.com/bird-vet/4dc81-duck-appears-having-seizures-flops.html
Have you given your duckling any niacin supplementation since it hatched? Are you feeding chick starter?