Dr. Scott Petrie. Long Point Waterfowl. Long Point Waterfowl. Web. Oct. 18. 2012
Chesapeake Bay Program. Chesapeake Bay Program. 2012. Web. Oct. 18. 2012.
Fairford Swan Aid. National Swan Convention. 2010-11. Web. Oct. 18. 2012.
Frequently Asked Questions About Mute Swans. Michigan Department of Natural Resources. 2001-2012. Web. Oct. 18. 2012.
Nature Wildlife. BBC. 2012. Web. Oct 18. 2012.
Chesapeake Bay Program. Chesapeake Bay Program. 2012. Web. Oct. 18. 2012.
Fairford Swan Aid. National Swan Convention. 2010-11. Web. Oct. 18. 2012.
Frequently Asked Questions About Mute Swans. Michigan Department of Natural Resources. 2001-2012. Web. Oct. 18. 2012.
Nature Wildlife. BBC. 2012. Web. Oct 18. 2012.