Archived posting to the Leica Users Group, 2014/01/07

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Subject: [Leica] IMG: Anna's Hummingbird
From: frank.dernie at btinternet.com (FRANK DERNIE)
Date: Tue, 7 Jan 2014 19:17:32 +0000 (GMT)
References: <23024950.1389108459399.JavaMail.root@elwamui-little.atl.sa.earthlink.net> <11CFEF13-8195-4AF1-939E-A4CCD8C13983@gmail.com>

I wonder if it is a high frequency low amplitude version of the Kestrel's 
low frequency high amplitude talent. I will never forget seeing this 
demonstrated by a staff member at a raptor centre. He moved the hand on 
which a Kestrel was perched at least 3 inches in every direction and the 
kestrel's head remained stationary in space and its gaze did not flicker.
It was amazing to see!
Frank D.


>> What continues to amaze me about hummingbirds is how they can keep their 
>> head perfectly still while everything else is shaking at 60 Hz.
>
>
>how do they do it Doug, do they have a gyroscope in their heads?
>
>
>s
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>> 
>> Doug Herr
>> Birdman of Sacramento
>> http://www.wildlightphoto.com
>> 
>> 
>> 
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Replies: Reply from philippe.amard at sfr.fr (philippe.amard) ([Leica] IMG: Anna's Hummingbird - FRANK)
In reply to: Message from wildlightphoto at earthlink.net (Doug Herr) ([Leica] IMG: Anna's Hummingbird)
Message from steve.barbour at gmail.com (Steve Barbour) ([Leica] IMG: Anna's Hummingbird)