birding-aus

Rhynchokinesis

To: "Birding-Aus" <>
Subject: Rhynchokinesis
From: "Robert Inglis" <>
Date: Wed, 6 Jan 2010 18:14:53 +1000
While surfing the net today I came across a request for info about 
"rhynchokinesis".

For those birdwatchers who have never heard of "rhynchokinesis" and/or have never seen it in action check out this page of Trevor Ford's website:
http://www.sunbittern.com/gallery-rhynchokinesis.html

"Rhynchokinesis" is the ability of some birds to be able to flex their upper 
mandible.

It is probably most often seen in godwits but I have observed it to some degree or other in several species of shorebirds and have photographed evidence of it a number of times. Keen bird-photographers (probably not photographers who simply take photos with birds in them) should carefully examine all of their shorebird photos (in particular) for evidence of the act - they might be surprised.

Bob Inglis
Sandstone Point
Qld
Australia
http://users.tpg.com.au/inglisrc/

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