Re: spot-lights etc

To: Kim Lim <>
Subject: Re: spot-lights etc
From: Lawrie Conole <>
Date: Mon, 3 Mar 1997 09:21:27 +1000 (EET)
On Fri, 28 Feb 1997, Kim Lim wrote:

> Of course I cannot drive into the bush proper but then how much ground can
> you cover in the bush in one hour? For spotlighting on foot I think it's
> more sensible using a powerful torch-light.

I use a 6V, 7.5 Amp hr WET CELL motorcycle battery & a 30 W light.  It's
much better than a torch & not prohibitively heavy or uncomfortable to
carry around.  With turning the thing on & off at regular intervals to
listen for critters, I generally get 3-4 hours out of the thing without
any difficulty.  According to some measurements I did of my average
walking speed, I can cover about 3-4 km an hour in open habitats, and as a
belt transect, that works out to be about 30-40 hectares of woodland
scanned per hour.  A friend & I regularly go for about 3 hours, covering
potentially 90-160 ha of woodland.  That's quite a lot, and the maximum
number of beasties we've seen in that time is about 200 (possums, Koala,
macropods, birds ....).  Spotlighting on foot (with a real spotlight) is
the best way of seeing anything less obvious than an Eastern Grey
Kangaroo, Greater Glider or Common Brushtail Possum.  Some owls will
follow a spotlighter on foot (Powerful is a notable example), and
Owlet-nightjars are much easier to see that way.  Many roosting diurnal
birds are easier to see when walking as well. 

 ... and as someone remarked, you can't beat a proper spotlight as a hand
warmer when its -5 degrees on a clear winter night!! 


Lawrie Conole
Geelong, Victoria, Australia


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