His harness was not attached to the glider and was missing.
Search team member Amanda Jane said the wing was reported by two people passing through the area who recalled seeing "a parachute billowing in the wind".
"The unrolled chute is indeed James' wing."
The immediate area was being searched and those searching by computer, using satellite images, were beginning to focus on the area also.
People around the world have been searching for Oroc using images on http://9mile.xcskies.com.
Oroc is a prominent figure in world paragliding circles, and took up the sport while living in Wanaka.
