Silvereye in the heat

To:	Birding-aus <>
Subject:	Silvereye in the heat
From:	John Leonard <>
Date:	Wed, 14 Jan 2009 14:49:54 +1100

It's hot today in Canberra, 37 degrees.

This afternoon a Silvereye has been singing in our yard for over an
hour, a lower volume version of its territorial song.

Admittedly it is in a shady deciduous tree, but can anyone explain why
it would waste energy and risk dehydration doing this on such a hot
day?

-- 
John Leonard
Canberra
Australia
www.jleonard.net
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