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

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English: 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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Source S1 Movie from Kress D, van Bokhorst E, Lentink D (2015). "How Lovebirds Maneuver Rapidly Using Super-Fast Head Saccades and Image Feature Stabilization". PLOS ONE. DOI:10.1371/journal.pone.0129287. PMID 26107413. PMC: 4481315.
Author Kress D, van Bokhorst E, Lentink D
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Date/TimeThumbnailDimensionsUserComment
current21:38, 30 June 20151 min 1 s, 1,024 × 800 (2.7 MB)Open Access Media Importer Bot (talk | contribs)Automatically uploaded media file from Open Access source. Please report problems or suggestions here.

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Format Bitrate Download Status Encode time
VP9 720P 166 kbps Completed 23:36, 28 August 2018 38 s
VP9 480P 101 kbps Completed 23:36, 28 August 2018 22 s
VP9 360P 62 kbps Completed 23:36, 28 August 2018 19 s
VP9 240P 37 kbps Completed 23:36, 28 August 2018 14 s
WebM 360P 279 kbps Completed 21:38, 30 June 2015 22 s
QuickTime 144p (MJPEG) 606 kbps Completed 21:10, 1 November 2024 2.0 s

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