People are worried about a single bird because they are applying, and
rightly so, the Precautionary Principle. It is hopelessly presumptive
that that we know the location of all birds in Australia. How can we
be sure there is only one House Crow? How can we be sure that this one
bird doesn't represent a loophole in quarantine that could stop some
forms of farming industry?
The key is this: just because we don't know of any dangers, it does
not imply that there aren't any. It is sensible to take precautions to
manage risks, even unknown risks. The alternative, advocated by some
here, is to assume everything will be alright and do nothing. I
strongly disagree with this sentiment.
EB
On 4/7/08, Ed Parnell <> wrote:
> Unless I'm missing an amazing fact about House Crow reproductive biology why
> is it that people are worried about a single bird? Presumably it isn't
> really a threat that needs taking care of unless it meets up with another
> House Crow of the opposite sex?!
>
> Ed
>
>
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--
Evan Beaver
Lapstone, Blue Mountains, NSW
lat=-33.77, lon=150.64
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