File:Eurasian Sparrowhawk and prey.ogv

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Eurasian_Sparrowhawk_and_prey.ogv(Ogg multiplexed audio/video file, Theora/Vorbis, length 1 min 41 s, 320 × 240 pixels, 292 kbps overall, file size: 3.51 MB)

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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.

0:54: Prey positioning. Here the sparrowhawk has the prey pinned between its D-II talons, with the other toes used for stable footing. Even though its victim is still alive, the raptor can continue to feed as the prey is well restrained by the predator's bodyweight and claws. Light stability flapping is intermittently employed to maintain position.

Filmed 12th March 1998, Nacton, Suffolk, UK.
Date 1998/2011
Source http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0028964
Author John Norris

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Date/TimeThumbnailDimensionsUserComment
current18:53, 18 December 20111 min 41 s, 320 × 240 (3.51 MB)FunkMonk (talk | contribs){{Information |Description=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

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Format Bitrate Download Status Encode time
VP9 240P 239 kbps Completed 02:31, 26 August 2018 1 min 13 s
Streaming 240p (VP9) 235 kbps Completed 00:57, 21 December 2023 1.0 s
WebM 360P 628 kbps Completed 08:49, 30 November 2023 12 s
Streaming 144p (MJPEG) 839 kbps Completed 12:35, 10 November 2023 2.0 s
Stereo (Opus) 1 kbps Completed 17:58, 22 November 2023 1.0 s
Stereo (MP3) 128 kbps Completed 15:04, 2 November 2023 2.0 s

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