Hi Jerry,I'm not sure if you're familiar with the Wye Marsh trumpeter swan program or not but, you may like to contact the Wye Marsh Center and let them know you've spotted one of their swans! They like to keep track of where they've settled down. You might even get an email back telling you where that particular swan has visited and it's background.Check them out here: http://www.wyemarsh.com/trumpeter.htmlHappy Birding!!!