For the birds… or not. From afar, Czech artist Jakub Geltner’s installations appear to be flocks roosting on rocks. Zoom in and find a commentary on surveillance. The series “Nest” – which includes this recent piece for Sculpture By the Sea in Aarhus, Denmark – plants clusters of cameras and satellite dishes in places of refuge: mossy seascapes, bridge overpasses, church facades. Geltner inverts the idea of observation, making the machines themselves the focal point. Even so, the feeling of being watched lingers over the installations, an uneasiness channeled in this MM6 dress with its fluid drape and image distortion. Hitchcock would be proud.