Bassian -Russet-tailed Thrush

["Bob Black" <>]

On January 1st this year we climbed Gulaga (Mt Dromedary) on the NSW south 
coast, near Bermagui.  Among the birds seen were ten Bassian Thrush. One of the 
two I photographed had an entirely white outer tail feather, which shows 
clearly in the photo. The guides suggest the Russet-tailed Thrush doesn't occur 
so far South,and the Russet taileds I have seen in S.Qld looked quite a 
different colour from this one. Is this a rare aberrant plumage? It suggests 
that the amount of white in the outer tail feather isn't always a reliable 
diagnostic feature, as this bird had more white than a Russet tailed.
Cheers, Bob Black, Byfield,Qld
==============================www.birding-aus.org
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