numbers of Needtails

Subject: numbers of Needtails
From: "John Leonard" <>
Date: Wed, 17 Nov 2004 21:53:00 +0000
I would have thought it it is often difficult to estimate how many Needletails there are, because you don't know if you're seeing wave after wave of birds coming through, or the same birds going round and round. (This is particualrly the case when they're at low altitude).

In January 2003 I down on our local sports oval in suburban Canberra and was treated to a flock of Needletails arriving before a storm front and hawking low for insects across the oval. I reported on birding-aus at the time that if they were the same birds going round and round then there were dozens and maybe up to a hundred, if different waves of birds, then many hundreds. My natural pessimism made me choose the former explanation.

John L

John Leonard (Dr)
PO Box 243, Woden, ACT 2606, Australia

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