U.S. Army Private Vincent Senn, 155th Inland Cargo Transportation Company, 53rd Trans. Battalion, 7th Trans. Brigade (Expeditionary) cargo specialist, plants grass during a shoreline planting activity at Fort Eustis, Va., April 23, 2014. The marsh grass planted will prevent erosion of the Fort Eustis shoreline. (U.S. Air Force photo by Senior Airman Austin Harvill/Released)

Tim Christensen, 733rd Civil Engineer Division environmental and natural resources specialist, briefs community members before a shoreline planting activity at Fort Eustis, Va., April 23, 2014. Each year, volunteers plant new shoreline grass to prevent erosion, which preserves the more inland habitats at Fort Eustis. (U.S. Air Force photo by Senior Airman Austin Harvill/Released)

U.S. Army Soldiers plant grass during a shoreline planting activity at Fort Eustis, Va., April 23, 2014. Erosion prevention activities like shoreline foliage planting protect active training areas, which saves money in repairs for the Army. (U.S. Air Force photo by Senior Airman Austin Harvill/Released)

Don Johnson, 733rd Civil Engineer Division pollution prevention specialist, cleans up a nature trail during an Earth Week nature trail spring cleaning event at Fort Eustis, Va., April 21, 2014. Community members removed debris, added gravel and cleaned markers to enhance the 1.2 mile nature trail. (U.S. Air Force photo by Senior Airman Austin Harvill/Released)

Kelly Etrata, Casualty Assistance benefits coordinator, and Gail Neff, 733rd Civil Engineer Division program analyst, look for box turtles during a survey expedition at Fort Eustis, Va., April 24, 2014. Box turtle surveys give 733rd CED environmental personnel a glimpse into the area’s ecosystem due to the turtles’ unique habitat needs. (U.S. Air Force photo by Senior Airman Austin Harvill/Released)

Christopher McDaid, 733rd Civil Engineer Division environmental element archaeologist, conducts a tour of the Matthew Jones House as part of the annual Earth Week celebration at Fort Eustis, Va., April 25, 2014. The house serves as an architectural museum, displaying artifacts found on Mulberry Island, the land Fort Eustis is built on. (U.S. Air Force photo by Senior Airman Teresa J.C. Aber/Released)

Christopher McDaid, 733rd Civil Engineer division environmental element archaeologist, conducts a tour of the Matthew Jones House as part of the annual Earth Week celebration at Fort Eustis, Va., April 25, 2014. Built in 1700, the house is the oldest building owned by the Department of Defense in the United States. (U.S. Air Force photo by Senior Airman Teresa J.C. Aber/Released)

Vic Johnston, 633rd Air Base Wing Public Affairs director of community engagement, and Airman 1st Class Dale Sullivan, 633rd Logistics Readiness Squadron vehicle operator, watch birds through their binoculars during the Earth Week Bird Count at Langley Air Force Base, Va., April 23, 2014. More than 18,000 birds have been counted at Langley AFB. (U.S. Air Force photo by Master Sgt. April Wickes)

An Osprey rests in its nest during the Earth Week Bird Count at Langley Air Force Base, Va., April 23, 2014. There are approximately 30 nests on base each containing two to four eggs. The fledglings are often relocated to states where Osprey populations have declined. (U.S. Air Force photo by Master Sgt. April Wickes)

Angela Gray, U.S. Air Force Civil Engineer Center environmental analyst, and Tomas Olexa, 633rd Civil Engineer Squadron natural resources manager, examine a guide book to identify a bird during the Earth Week Bird Count at Langley Air Force Base, Va., April 23, 2014. The base hosts two annual bird counts, held in spring and winter. The data collected from these counts is shared with the 1st Fighter Wing Safety office and the local birding community. (U.S. Air Force photo by Master Sgt. April Wickes)