We would strongly advise you to get the swan out of that area. It will be killed by an alligator. The swan might have been displaced due to the inclement weather and lost its way. We would suggest that you contact a local wildlife/waterfowl rehabilitation facility to see if they may be able to find it a good home. Otherwise, you might try to find the park and see if something might have chased it such as children, domesticated or wild predators. In any case, the swan needs to be provided a good safe home and the present habitat is certainly not safe. The Regal Swan