canberrabirds

Deformed Godwit beak

To: <>
Subject: Deformed Godwit beak
From: "Steve Holliday" <>
Date: Fri, 8 Jan 2010 08:51:25 +1100

2 out of 2!

From: Mark Clayton [
Sent: Thursday, 7 January 2010 9:59 PM
To: 'Steve Holliday';
Subject: RE: [canberrabirds] Deformed Godwit beak

 

Good evening all,

How about two Great Knot and a Black-tailed Godwit!?!

Mark


From: Steve Holliday [
Sent: Thursday, 7 January 2010 12:51 PM
To:
Subject: RE: [canberrabirds] Deformed Godwit beak

 

Hi Denis

Not a deformity – a flexible upper mandible is found in many waders. A message on Birding-Aus alerted me to this excellent webpage http://www.sunbittern.com/gallery-rhynchokinesis.html discussing this ability.

Anyone like to identify the other two wader species in the original photo?

cheers

Steve

 

 

From: Denis Wilson [
Sent: Wednesday, 6 January 2010 1:23 AM
To: COG bird discussions
Subject: [canberrabirds] Deformed Godwit beak

 

Dear COG list members.

 

Sorry that this is NOT a local issue, but can anyone explain what is happening with the bird featured in a North Queensland Birder's Blog?

 

The upper mandible is clearly bent upwards, away from the lower mandible.

How could it possibly probe into the mud, in the normal manner?

 

As they are migratory birds, I cannot imagine how this bird survived for the period of time required to travel around the Pacific Ocean, if it is a genetic deformity?

 

The author claims to have seen this several times, but does not document that claim.

 

Cheers

 

 

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