birding-aus

honeyeater migration

To: "Birding-aus (E-mail)" <>
Subject: honeyeater migration
From: "Philip Veerman" <>
Date: Fri, 1 Apr 2005 21:07:48 +1000
Apparently Alastair wrote: "My understanding is that while you have mentioned Noisy Friarbirds on the move in the context of honeyeater migration, friarbirds are not migrants in the true sense of the word (i.e. moving from cooler to warmer), rather they move between areas of flowering eucalypts, which may take them in any direction."

That is a novel idea. I had not at all thought of migration being just about moving from cooler to warmer. That is a possibility but at best a very narrow view. In general it is regular movements of most or all of populations from one place to another. If the birds wanted the warm, they would be sedentary in the tropics. Most of the international or trans-equatorial migrants move to follow the patterns of longer day length. The Arctic Tern, which goes the furthest, by-passes the warmth, to go towards the poles. As for the Friarbirds, whilst position is not always regular, timing of movements generally is.
 
Philip
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