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I'll respond to this on this list since it may be of interest to a number of people. The device that Ian, Eric and I use is called a SongFinder. It is for people who have lost the high frequencies in their hearing. It takes the higher frequencies and drops them down to an audible range without changing the lower frequencies, I have stood in the woods without it on and heard nothing. When I put it on, suddenly there are bird chirps and songs all around me. The cost is about $700. The website is http://www.nselec.com/ Don Don MacNeill donmacneill@eastlink.ca ----- Original Message ----- From: "Brian Dalzell" <aythya@nb.sympatico.ca> To: <naturens@chebucto.ns.ca> Cc: <iamclar@dal.ca> Sent: Wednesday, November 11, 2009 10:05 PM Subject: Re: [NatureNS] Update: BLACK-THROATED GRAY WARBLER, Halifax I meant to ask you Monday, what was that device you were using to amplify sound? -------------------------------
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