To: Birding=aus <>
Subject: Swifts
From: Reg Clark <>
Date: Sun, 19 Dec 2004 23:10:34 +1100
Hello Mike,

Two small groups of W/T Needletails (each of 4 /6 birds) over St. Ives, 16kms NW of Sydney CBD. The first on 8/12/04 , the second on 17/12/04 . Both moved North under conditions of low atmospheric pressures which seem to provide the right combination for the rise of insects to higher elevations above the treetops , which eminently suit the swift's feeding style.However, similar conditions prevailing today, here , have not produced a single sighting.


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