Unidentified tern at Lake Cargellico

[Bob Ashford <>]

Hi Birders



I was at the Sewage Works at L Cargellico, NSW, last week (Tue 6th Oct) with
a number of birders from Birdlife Shoalhaven.



There were numerous Gull-billed and Whiskered terns there and one other tern
that was not in summer plumage.

It was resting on a mud bar along with many other GB and W terns

It appeared to be smaller than the Whiskered

While not as strongly marked as I have seen other White-winged Black Terns
my first inclination was to suggest it might be

Others agreed it looked different form the W and GB but identification was
not conclusive



I cant think what else it would be (and I am not a brilliant twitcher!!) and
was wondering whether others have seen WWBT there before



Your comments appreciated



Many thanks

Bob Ashford



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