How-Lovebirds-Maneuver-Rapidly-Using-Super-Fast-Head-Saccades-and-Image-Feature-Stabilization-pone.0129287.s001

About

Slow motion video of a rosy-faced lovebird (Agapornis roseicollis) performing a turning on a dime maneuver. The bird performed a saccadic gaze behavior timed within the wingbeat. Between saccadic turns, the head is rotationally stabilized. In contrast, the body turns continuously during the maneuver following the head. The bottom graph illustrates the estimated head and body yaw orientation relative to a horizontal in the arena. An orientation of 0° represents a straight flight away from the perch, 180° a flight to the right towards the perch. Vertical bars indicate the downstroke phases and thereby the wing beat timing. The video is 50x slowed down for illustration. The actual maneuver took 1.15 seconds. See Fig 2 for more quantitative results.

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Wikimedia Commons, in Wikimedia Commons

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CC BY 4.0, as the Wikimedia Commons states it.

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Creative Commons Attribution 4.0

Credit

Kress D, van Bokhorst E, Lentink D

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