[TN-Bird] Ornithological News - Birds Flying in Vs and Fish-eating Birds
- From: Charles Nicholson <cpnicholson53@xxxxxxxxx>
- To: TN-bird <tn-bird@xxxxxxxxxxxxx>
- Date: Fri, 17 Jan 2014 21:34:17 -0500
For many years we've explained why many birds fly in Vs with the hypothesis
that it reduces the energy requirements of the birds in the V (except for
the lead bird). This had not be experimentally verified until now - see
http://www.nature.com/news/v-is-for-vortex-1.14507?WT.ec_id=NATURE-20140116.
And now photographic evidence that fish do catch birds in flight and eat
them -
http://www.nature.com/news/video-fish-leaps-to-catch-birds-on-the-wing-1.14496.
(Monty Python fans will question the flight speed of the obviously unladen
African swallow).
Chuck Nicholson
Norris, TN
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