I've often seen domestic pigeons do similar things in flight. Most of them
don't do it very often, so I've assumed the ones that do are at least partly
descended from the roller and tumbler varieties, which are selectively bred for
these traits, and I assume the ability to perform tight loops and sudden
swerves were originally for escaping raptor attacks.
I could believe that might apply to a cockatoo, but maybe not a goose.
Peter Shute
-----Original Message-----
From:
On Behalf Of
Sent: Wednesday, 23 December 2009 8:45 AM
To: Gary Wright
Cc: birding aus
Subject: Re: Re: [Birding-Aus] You would have to be a Goose to Try This
I've often seen Sulphur-crested Cockies do this sporadic movement when they are
coming into land where they have this jerky movement from side to side. Could
this be them whiffling to reduce speed?
Regards,
Mark
> Gary Wright <> wrote:
>
> Hi Carl
>
> My son is a parachutist and he did a bit of whiffling of his own
> recently.
> He sent me a photograph of himself coming into a formation and he was
> upside down. I asked him what he was doing upside down and he replied
> "it takes a lifetime to learn to fly"
>
> Not for a goose!
>
> Gary
>
> 2009/12/22 Carl Clifford <>
>
> > Dear All,
> >
> > I have never regarded Geese as contortionists. I stand corrected.
> See:
> >
> http://www.telegraph.co.uk/earth/wildlife/5353933/Goose-photographed-f
> lyi
> ng-upside-down.html
> >
> >
> > Cheers,
> >
> > Carl Clifford
> > ===============================
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> >
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