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Falcons pursue prey using visual motion cues: new perspectives from animal borne cameras

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Academic year: 2020

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Figure

Fig. 1. Trajectories resulting from alternative pursuitstrategies.speed;  (A) Classical pursuit; (B) constant bearingdecreasing range (CBDR); and (C) motion camouflage withthe baseline held at a constant absolute angle (after Ghoseet al., 2006)
Fig. 2. Computer-simulated bird-mounted video images of prey during pursuits. (A) Schematic and (B) simulated prey position on the image for classicalpursuit (red circles), motion camouflage (blue circles) and optimal visual angle (black squares)
Fig. 5 shows the resulting distributions of prey θhybrid falcon and for the gyrfalcon
Fig. 6. Bird-mounted camera mounting geometries. (A) Schematicdiagram showing the relative orientation of the camera optical axis and bodyaxis in flight on the back-mounted videocameras

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