Re: RE: [Birding-Aus] White Ibis studies in Sydney Region

To: "storm" <>, <>, "David Berg" <>
Subject: Re: RE: [Birding-Aus] White Ibis studies in Sydney Region
From: "Greg & Val Clancy" <>
Date: Sat, 12 Jan 2008 10:00:37 +1100
The ibis situation is certainly a complicated one. If the urban birds were permanent residents and their population was becoming excessive then it would be justified to reduce it to a sustainable level. But, as has been pointed out by Ursula Munro, we should be looking at the ibis population on a continental scale to determine if the population is increasing, is stable or is declining. A few worrying facts:

Straw-necked Ibis have bred in the past few years at Lawrence, near Maclean, north coast NSW for the first time in living memory - presumably due to the lack of water in the Murray-Darling system;

an important colony site was destroyed in the Gingham Watercourse last year by the landowner clearing the vegetation "under licence". This matter is still being investigated;

White Ibis now occur as breeding birds in areas, such as Sydney, where they were historically only non-breeding visitors.

Greg Clancy

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