"The World's Best Birdwatcher". Missouri Conservationist Magazine. Missouri Department of Conservation. November 16, 2010 [2003]. Archived from the original on 13 November 2017. Retrieved June 10, 2016.
"The World's Best Birdwatcher". Missouri Conservationist Magazine. Missouri Department of Conservation. November 16, 2010 [2003]. Archived from the original on 13 November 2017. Retrieved June 10, 2016.