How do loudly calling birds not deafen themselves?

["Tony Russell" <>]

I've been accused of it for years.

-----Original Message-----
From: Carl Clifford  
Sent: Saturday, February 09, 2008 1:08 PM
To: Tony Russell
Cc: 'John Leonard'; 'Birding-aus'
Subject: How do loudly calling birds not deafen
themselves?


Tony,

Haven't you heard of selective deafness? Worked for me.

Cheers,
Carl Clifford


On 08/02/2008, at 11:16 AM, Tony Russell wrote:

> Us blokes could do with something like this when the other half is 
> prattling on a bit too much.
>
> -----Original Message-----
> From:  
>  On Behalf Of John Leonard
> Sent: Friday, February 08, 2008 8:38 AM
> To: Birding-aus
> Subject: Re: [Birding-Aus] How do loudly calling birds not deafen 
> themselves?
>
>
> Bats have a system whereby they don't listen when they're emitting
> their
> unltrasonic pulses, but in the intervals they listen again for the
> echoes (can't remember whether it's neurological or mechanical (ie
> closing their ears)).
>
> Although it isn't so critical for birds (they're not echo-locating)
> they
> may have some similar system.
>
> cheers
>
> John Leonard
>
> On 08/02/2008, Tania Ireton <> wrote:
>> A friend rang me last night to ask how loudly calling birds such as 
>> Rainbow Lorikeets and Sulphur-crested Cockatoos not deafen themselves

>> with their screeching?  She was reading a new book on cicadas which 
>> said that cicadas are able to disconnect something in their hearing
>> so
>
>> as to deaden the incoming sound before they started calling
>> themselves
>
>> (I didn't get all the details).  She wanted to know how birds manage.
>
>> Any ideas?
>>
>>
>>
>>
>>
>> Regards,
>> Tania
>>
>>
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>>
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>
>
> --
> John Leonard
> Canberra
> Australia
> www.jleonard.net
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