PETERSON AIR FORCE BASE, Colo. – Doug Eckberg, United States Department of Agriculture Animal and Plant Health Inspection Service wildlife biologist, observes bird nests in the trainer plane at Peterson Air Force Base, Colorado, June 4, 2018. Birds find and adapt to surrounding water, according to Eckberg. When birds start to build nests in the trainer plane, Eckberg has to make a call for firefighters at Peterson AFB to water down the trainer plane. (U.S. Air Force photo by Audrey Jensen)