You need to get the cygnet to a veterinarian immediately. There is no way of knowing what is wrong or course of treatment without an examination. The cygnet could have been accidently trampled by a parent, caught its leg or run into something, or have been bitten by something, i.e., predator or snake. So, the swan needs to be seen by a licensed veterinarian as soon as possible. The Regal Swan
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