canberrabirds

Movements of parrots

To: <>
Subject: Movements of parrots
From: "Philip Veerman" <>
Date: Wed, 20 Apr 2005 22:30:34 +1000
Oh I should have added that the statistic W = 52.0 in the GBS summary demonstrates that the Eastern Rosella is not migratory. It shows that throughout the 21 year history of compiled data, the species has been recorded on an average of 52 weeks per year. That means there has never been a single week in that 21 years during which the species was not observed for at least one site. Also it was observed on R = 57.693% of observer weeks of the survey, a very high proportion.
 
Philip
 
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