Recordings of barn owl flights (O1-O3) and peregrine flights (P1-P3) from the tower camera. The video is slowed down by a factor of four. The camera was positioned on the first platform level of the mobile access tower. Cameras 5-8 are visible in the scene, along with the video camera used to obtain Supplementary Movie 2. The white sheet was used to increase the illumination of the ventral surface.