This is an unused look. This appearance has never been available on a player mount.
Notes:This striking green crane has sadly never been used as a mount.
Note that there are six possible saddle colours for cranes, and they aren't matched to a specific bird colour. We don't know which Blizzard would choose if they did make a green crane mount, but you can browse all possible combinations in the image viewer.
Matching Companion Pets:
Jade Crane Chick