Winner: Theoretical Ecology and Models. “3D home range model calculated using GPS tracking data acquired from a wild California condor. This figure demonstrates 3D MKDE home range volumes calculated from GPS tracking data acquired from a free-ranging California condor reintroduced to the mountains of Baja California, Mexico. The red 3D volumes indicate the inner core 75% home range used by this bird and the white 3D volumes indicate outer regions used less often. The home range volumes were generated using a 3D terrain model of the mountains as a lower bounding layer.” Attribution: James K. Sheppard.