windfarms and bats

To: Keith Brandwood <>, "" <>
Subject: windfarms and bats
From: Stuart Cooney <>
Date: Wed, 1 Dec 2010 17:09:51 +1100
Hi Keith,

I saw this too.

Unlike the US, however, not many of our bats  migratory, which are the type of 
bats most impacted by wind turbines in that country.  Therefore the anticipated 
impact is considered to be smaller on most species.  An exception is the 
Southern Bent-wing Bat, which is the southern subspecies of the Common 
Bent-wing Bat and is considered critically endangered following sharp declines 
in its population size.  This bat also migrates between summer maternity caves 
on coastal Victoria and SA to winter roosting caves on a regular, yet poorly 
understand, basis.  In doing so they cross some prime wind farm prospecting 
territory in Victoria's western districts.  The impact of this is yet to be 
known.  Indeed the impact of wind farms generally on bats is still poorly known 
given the size of microbats and, it seems, a lack of anticipation that they 
might be impacted--the science is catching up!

An issue to watch I reckon,

From:   On 
Behalf Of Keith Brandwood 
Sent: Wednesday, December 01, 2010 10:50 AM
To: birdingaus
Subject: windfarms and bats

Hi everyone, on the PBS news hour yesterday which for those of you who don't 
know is USA based news program featured daily at16-30 hrs on SBS 1 there was a 
segment on Windfarms in Oregon. The disastrous news was that thousands of small 
bats were being killed by the wind turbines.Death was caused not only by the 
blades hitting the bats but the differential in air pressure caused by the 
turbines caused blood vessels in the bats to rupture.Not very green energy 
after all.
the beautiful Hawkesbury 60km N/W of Sydney
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