Video simulation is divided in two screens. Right screen shows the position of the kestrel and the trajectory of the kestrel and the UAS (red point, dotted line and blue line, respectively). Simulation has been built using an orthophotography of the study area taken from Junta de Andalucía (Regional Government) and the image mosaic obtained from the UAS. Left screen shows the simulated view of the kestrel using information taken by the UAS. As an example, note how resolution of imagery taken by the UAS is much higher than that of the satellite image at transitions 0:32-0:38 seconds and 1:01-1:02 minutes. Rafa Silva and Pepe Ojeda built this simulation.