These are the same birds featured in this map:
Military - Air Force, Airplanes - Military - Static Display - Misc
It's just a new location. All of the planes here:
are also near this new location, though not yet in the Bird's Eye. The description in the Museum link above is totally inaccurate, the new location is nowhere near the old location, and no hill was removed. It's called Overlook park, it overlooks the south end of the runway, and has been there for years. See the new layout at the museum's Web site.