<>, <>, <>, <>
"Steve Potter" <>
Tue, 26 Oct 2010 17:37:56 +1030
Not to mention that half of us will be ticking the Dodo in 30-48 years!!
I'd rather see them now..... But they'll never look as good as they do in
Africa!! Which I have seen.
Tue, 26 Oct 2010 14:29:39 +1030
Aha ! But if you don't apply the 3 generation rule you can tick them
On Behalf Of Dave Torr
Sent: Tuesday, 26 October 2010 1:52 PM
To: Nikolas Haass
Subject: NSW Ostriches
Whether one counts them or not is a matter of personal preference - however
it is important that people record such things (if they are going to record
sightings at all) else it becomes hard in later years to track the spread of
such species. There seems to be a tendency in some places to only record
"natives" and ignore everything else.
On 26 October 2010 14:12, Nikolas Haass <> wrote:
> Hi all,
> If you want to count introduced species (which in my personal opinion
> really make sense), shouldn't you at least apply the "three generation
> rule" (=
> proven self-sustaining generations)? For long-lived birds like Ostrich,
> means approximately 30-48 years of proven self-sustaining population.
> NSW Ostriches need another 10-28 years to become "tickable".
> Nikolas Haass
> Sydney, NSW
To unsubscribe from this mailing list,
send the message:
(in the body of the message, with no Subject line)
The University of NSW School of Computer and Engineering
takes no responsibility for the contents of this archive. It is purely
a compilation of material sent by many people to the birding-aus mailing list. It has not been checked for accuracy nor its content verified in any way.
If you wish to get material removed from the archive or
have other queries about the archive e-mail
Andrew Taylor at this address: