I'm not a wildlife photographer by any stretch, but I took the opportunity to snap this photo at a museum. No wonder I've never been able to discern a size difference among the swans I see in the Skagit. http://www.flickr.com/photos/56547255 at N00/8560443244/in/photostream This display is at the Museum of the North at the University of Alaska Fairbanks (http://www.uaf.edu/museum/). Kevin MooreSeattle, WA