I wonder whether everyone will wait for three self-sustaining generations of
Arabian Shearwaters in Australian Territory before ticking them?? :)
John Tongue
Ulverstone, Tas.
On 26/10/2010, at 1:12 PM, Nikolas Haass wrote:
> Hi all,
>
> If you want to count introduced species (which in my personal opinion doesn't
> really make sense), shouldn't you at least apply the "three generation rule"
> (=
> 3
>
> proven self-sustaining generations)? For long-lived birds like Ostrich, this
> means approximately 30-48 years of proven self-sustaining population. Thus,
> the
> NSW Ostriches need another 10-28 years to become "tickable".
>
> Cheers,
>
> Nikolas
> ----------------
> Nikolas Haass
>
> Sydney, NSW
>
>
>
>
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