Scarce Swallowtail Found along a trail on the "Danube Island" in Vienna. First one of these (with the front wings bulging out in front) that I've seen. In German they are separated from other Swallowtails and are called "Sail Butterflies" (Segelfalter). Their flight is strange to see.
Classic Pose Orangling on a Centaurea jacea (Knapweed)
Ol' Green Eyes At the edge of a pond in the National Park Danube Weblands