File:The-Predatory-Ecology-of-Deinonychus-and-the-Origin-of-Flapping-in-Birds-pone.0028964.s002.ogv

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The-Predatory-Ecology-of-Deinonychus-and-the-Origin-of-Flapping-in-Birds-pone.0028964.s002.ogv ‎(Ogg Theora video file, length 59 s, 320 × 240 pixels, 596 kbps, file size: 4.22 MB)

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English: Stability flapping in a wild Eurasian Sparrowhawk ( Accipiter nisus ). The vigorous flapping of this sparrowhawk is not an attempt to fly away with its prey. Rather, this is “stability flapping”: employed only to get on top of the prey and maintain this position so that the raptor can use its bodyweight to pin down its victim. With the feet employed in preventing escape, the forelimbs must now be used to maintain an advantageous position: the opposite to what is seen in basal theropods where the forelimbs presumably had a greater role in subduing prey, with the feet used for positioning. Filmed 12 th March 1998, Nacton, Suffolk, UK. (AVI)
Date
Source Video S1 from Fowler D, Freedman E, Scannella J, Kambic R. "The Predatory Ecology of Deinonychus and the Origin of Flapping in Birds". PLOS ONE. DOI:10.1371/journal.pone.0028964. PMID 22194962. PMC: 3237572.
Author Fowler D, Freedman E, Scannella J, Kambic R
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This file is licensed under the Creative Commons Attribution 3.0 Unported license.
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  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
Copyright owner: Fowler et al.
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This file was transferred to Wikimedia Commons from PubMed Central by way of the Open Access Media Importer.
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Date/TimeThumbnailDimensionsUserComment
current00:44, 24 September 201259 s, 320 × 240 (4.22 MB)Open Access Media Importer Bot (talk | contribs)Uploaded with the Open Access Media Importer. (test edit) botrequest

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Format Bitrate Download Status Encode time
VP9 240P 276 kbps Completed 21:37, 21 October 2018 1 min 4 s
Streaming 240p (VP9) 277 kbps Completed 17:37, 17 December 2023 1.0 s
WebM 360P 444 kbps Completed 15:53, 2 December 2023 7.0 s
Streaming 144p (MJPEG) 1.02 Mbps Completed 13:25, 9 November 2023 2.0 s

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