Initial data
About 20 kilometers from the village of La Serena Agustin Lepe shot using a UAV fast bright object. The survey he carried out on 1 January, but nothing raised my suspicion, as the flying object was moving so fast that without slowing down to notice. Saw a UFO it when cropping videos to your PC.
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Hypotheses
Objects in motion, captured on a long exposure
Most often this artifact is called skayfish if the lens gets a passing bird or insect. It is based on the discrepancy between the speed of the video and the frequency of the flapping of insect wings. Essentially, each video drops a few strokes of the wings of an insect, which when viewed looks like "arrow", provided with long protuberances. The motion of the insect by its translucent body seems to "boom" and vibration of the wings give the appearance of bumps.
Investigation
When frame-by-frame playback you can see the characteristic shape of the "skayfish". With high probability, is a bird.
On the basis of its behavior (the flight loop and the subsequent dive in the water), it's probably a Gannet (or a similar sea bird), preying on fish by diving and pursuit under water.
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Resume
Objects in motion, captured on a long exposure
Most often this artifact is called skayfish if the lens gets a passing bird or insect. It is based on the discrepancy between the speed of the video and the frequency of the flapping of insect wings. Essentially, each video drops a few strokes of the wings of an insect, which when viewed looks like "arrow", provided with long protuberances. The motion of the insect by its translucent body seems to "boom" and vibration of the wings give the appearance of bumps.
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