Montgomery Bell State Park Ranger Tim Wheatley shows and tells about the Great Horned Owl during the Cheatham Lake Environmental Awareness Day May 2, 2013, at Cheatham Lake in Ashland City, Tenn. The U.S. Army Corps of Engineers Nashville District organized the event where students from West Cheatham Elementary School learned about various environmental topics in an outdoors setting. (USACE photo by Leon Roberts)