Ask the Swan Specialist

Swans in my swimming pool
Date: 6 April 2014

yesterday I arrived at my weekend house to find 2 swans in my swimming pool. One swan left in the afternoon and has not yet returned. I have two golden doodle dogs that are eager hunters and anxious to meet the swan. I have to keep them on a leash in my back yard. I am worried that the swan is not eating. It is not ideal to have a swan around my dogs.
How can I get rid of the swan?
Many thanks,