Silent migratories

To: <>
Subject: Silent migratories
From: "Margaret Cameron" <>
Date: Mon, 12 Mar 2007 13:53:49 +1000
from the point of view of monitoring global changes, does it matter whether the dates are of the last birds leaving your area or the last birds going through? presumably you have always recorded them the same way and if you think you may now be recording the last passage migrants instead of the last locals, maybe you were always?


Margaret Cameron
2 Cintra Street
Eastern Heights
Queensland 4305
07 3282 9151

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