[NatureNS] AND ...

Date: Mon, 06 Apr 2009 07:27:25 -0300
From: Annabelle Thiebaux <hamst@xplornet.com>
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Thanks Randy,  I thought you would know!  Of course I meant nostrils!

Randy Lauff wrote:
> Yup.
> 
> Noses are used for two things, well, two major things...breathing and smelling.
> 
> In general, it is thought that birds don't have a good sense of smell,
> though I seem to recall some work with vultures that indicated that
> their sense of smell is better than most birds.
> 
> Birds in general keep their beaks shut except when vocalizing or
> feeding/drinking. Most air going to their lungs goes through their
> nostrils. Now some birds like gannets have no nostrils (this is
> advantageous to divers, especially plummet divers). Winter air
> entering the bird for breathing must be warmed to above freezing prior
> to it getting to the lungs (which are so thin and wet that they would
> freeze almost instantaneously were this not to happen). In mammals,
> and I presume birds, this happens in the "nose".
> 
> If you define the nose more liberally, then the beak is definitely
> made up of the nose, in part. And the beak is used for feeeding,
> drinking, display, defense, preening, and likely a few more tasks that
> I'm just not thinking of off the top of my head.
> 
> Randy
> 
> On 05/04/2009, Annabelle Thiebaux <hamst@xplornet.com> wrote:
>> DO BIRDS HAVE NOSES?
>>
> 
> 

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