Hot air and OBP's

To: Birding-Aus <>
Subject: Hot air and OBP's
From: Paul Taylor <>
Date: Fri, 08 Sep 2006 01:15:53 +1000
Andrew Taylor wrote:
An interesting aspect is that wind turbines generate infrasound which
some bird hear much better than us. So a pigeon might be able to hear
a wind turbine from several kilometres away - not that this implies any
environmental impact as a consequence.

One would also assume it would be less likely for a pigeon - or an OBP -
to have an impact the turbine...

Infrasound is not an issue with modern wind farms where the turbine blades
are upwind of the tower (all of those I've visited in Australia.)

I think at this point, this discussion would be best taken off-list;
visiting an existing wind farm is likely to be more informative than
quoting Rayleigh numbers etc.


   Paul Taylor                                  Veni, vidi, tici -
                           I came, I saw, I ticked.

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