Niven
I think what Edwin was trying to say was that they have been at that site
now for four out of four years now (first seen in 1997/98). Whether this
continues remains to be seen. It could well be the same birds showing
fidelity to a wintering site and that this will cease once these birds drop
off the twig. On the other hand, other birds may join them and the
visitation could well continue.
Nevertheless, how regularly do, what are probably best considered vagrant,
birds need to show up to be considered regular migrants?
Cheers
David Geering
> -----Original Message-----
> From: Niven [SMTP:
> Sent: Sunday, 11 February 2001 19:55
> To:
> Subject: Re: [BIRDING-AUS] Yellow Wagtail s a regular migrant to
> Newcastle NSW?
>
> If four out of 10 years makes a regular migrant, then White Wagtail
> is regular in Darwin, and Tree Sparrow looks promising (there were
> a couple yesterday, and some a few years back).
> Cheers
> Niven : )
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