Description of data files associated with: Avian surface reconstruction in free-flight with application to flight stability analysis of a barn owl and peregrine falcon Nicholas E. Durston, Wan Xue, Jian G. Liu, Shane P. Windsor* * Corresponding author: shane.windsor@bristol.ac.uk Dr Shane Windsor Department of Aerospace Engineering University of Bristol Queens Building, University Walk, Bristol, BS8 1TR United Kingdom This dataset consists of the original uncompressed .tif images used for the 3D surface reconstruction of a barn owl and peregrine falcon in free-flight. The photographs for each of the 6 flights are in a folder named with the flight number, eg. "O1_images" for the photographs of the (O)wl flight #1 and "P1_images" for the photographs of the (P)eregrine flight #1. Each folder contains the 8 orginal uncompressed images used in the reconstruction.