Orange Bellied Parrots and Wind Generators

To: birding-aus <>
Subject: Orange Bellied Parrots and Wind Generators
Date: Tue, 5 Jun 2001 17:04:44 +0800
I have a few questions about OBPs and wind farms.

1.  Do the OBPs migrate across Bass Strait and then spread out along the 
coast?  Or do they migrate direct to their wintering areas?

2.  I have experienced wind farms at Esperance in WA and Rottnest Island.  
What surprised me was the noise as the turbines spun.  You certainly would 
not want to live next door to one.  Maybe the latest technology is much 
quieter?  If there is considerable noise, what is the effect of the noise 
on the surrounding birds over a period of time?  Do the birds tolerate it, 
or do they move away?  If they stay, is their hearing affected as a 
human's hearing would be if subjected to such noises as in industrial 

3.  40 bird strikes per turbine per year is quoted by Jon Starks from 
overseas.  I am sure that the birds could see the turbines in normal 
conditions.  So does anyone know if these strikes are during darkness?  
during storms?  40 single strikes, or one or two mass strikes?  Large 
birds or small birds?

All things being equal, I would support wind farms.  However they still 
need backup power generation for periods of no wind, and periods of strong 
winds (I think the wind farm in Esperance shuts down if the wind exceeds 
30 knots or something similar).

I also wonder whether Dean Marr is a necessary location.  I don't know the 
area at all.  Would there be somewhere else close by?  I assume not if 
they knew of the sensitivity of the site?  Will all the wind farms be 
connected into one power supply network, or is each just for the local 
area?  If they are talking about 1,000 farms over time, then surely one 
less is not such a big issue?  especially if they form a network.

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