Although almost impossible to see in this photo, the Passat Ornithopter is disassembled and hidden behind the WW1 artillery piece and cars of the collection up in the WW1 Quonset hut. You can see the rear sticking out in this first photo.
Here are some of the wing panels.
Here is a link to the info page on the ORA website:
Passat Ornithopter
Salute,
Steve