We should remember that the House Sparrows had it very good since the
beginnings of agriculture. With large amounts of stored grain around
the place and lots being spilt, they built up to large popualtion
numbers. Since the decline of horse-drawn transport in the early 1990s
and the beginning of mechanised farming (with more efficient grain
storage), they are retuning to lower levels. It may be, however, that
their numbers will plateau at lower level at some point.
John Leonard
On 25/06/2008, <> wrote:
> It is important to remember that the sparrow in the UK has been declared
> threatened on the basis of its rate of decline, not its abundance.
> Sparrows are still common but due to long-term records an alarming rate
> of decline has been detected. If only we had more long-term data on
> Australian species we would be able to get away from the idea of
> declaring species threatened on the basis of their abundance by which
> time it may be too late.
>
> -----Original Message-----
> From:
> On Behalf Of Dave Torr
> Sent: Wednesday, 25 June 2008 11:55 AM
> To: Alan Gillanders
> Cc: Birding-Aus Aus
> Subject: Re: [Birding-Aus] Bring Back the Sparrows?
>
> They seemed fairly common around Dover in England whilst I was there
> recently. But I did not record them in many other places in Southern
> England - although it was not primarily a birding trip.
>
> 2008/6/25 Alan Gillanders <>:
>
> > G'day,
> > I got the impression in Germany that the house sparrow was doing very
> > nicely. I had never been there at the end of winter for any length of
> time
> > before but found them to be everywhere I had recorded them before.
> While I
> > keep no abundance records my feeling was that they were as numerous as
> > always (over the last 14 years) in most places and more common in one,
> > Immenhofen in Bavaria.
> > Regards,
> > Alan
> > ===============================
> > www.birding-aus.org
> > birding-aus.blogspot.com
> >
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--
John Leonard
Canberra
Australia
www.jleonard.net
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