Swallowtail or Old World Swallowtail

If you look at #4 you won't see anything beside this little irregularity in the grass. That's what I thought, something is wrong there and it was: No grass, but a wonderful Swallowtail. Tricky conditions: windy and warm, late daylight from the side, with a lot of shadows of the grass blades on the wings. But at the end I got a good shot from the side. I think it might be "our" swallowtail we released 1 week before, I remembered the missing tail on the hindwing.