Subject: [Tweeters] Northern Shoveler vortex/Henderson, Nevada
Date: Nov 3 18:03:24 2013
From: Hank Karen - karenhank at yahoo.com
Video of Northern Shovelers circling and creating a vortex in the water?thereby drawing?up food matter from the bottom.
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http://www.flickr.com/photos/ljcouple/10619417506/
?
If Karen and I have seen this behavior before, we certainly didn't recognize the purpose.
?
Hank Heiberg
Lake Joy
Carnation, WA
karenhankatyahoodotcom