Always on watch, Red Tailed Hawk at Dover, AFB, Del.
A red-tailed hawk sits on the winglet of a C-17 Globemaster III Dec. 17, 2013, at Dover Air Force Base, Del. The bird of prey is a frequent visitor at Dover AFB and helps control small pests such as field mice and rabbits. The C-17 is assigned to the 436th Airlift Wing. (U.S. Air Force photo/Greg L. Davis)