Biggest number ever of departing Bar-tailed Godwits correction

To: "Birding Aus" <>
Subject: Biggest number ever of departing Bar-tailed Godwits correction
From: "Ricki Coughlan" <>
Date: Sat, 9 Apr 2005 05:58:35 +1000
It appears that I was in need of a little sleep when I put this posting together. The migratory waders will, in a manner of sorts sleep.
During high tides, many of these species actually do put significant portions of their brain to sleep as they roost along shorelines. However, they generally keep some parts quite conscious, in order to spot predators or respond to the movements of those birds around them that do - hence the occassional false alarm. During migration flights these birds employ similar modes of sleep and thus do spend considerable periods with various parts of their minds in sleep mode. (many Sydney motorists will be familiar with a function in human beings too!)
This of course is just one of many adaptions which selective forces have bestowed upon the migratory waders in order for them to achieve their journeys and all are equally amazing.
Broome WA
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