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About ten days ago, David Castaner forwarded pix of a duck he photographed 11/16/02 in a canal near Shoreline Drive in Alameda County, CA just south of the south shore shopping center. A photo of the duck is now available on Robert Mangile's web site at the following URL. http://www.apexcorp.com/~rmangile/BulBoard/BulBoard.html Can anyone identify it?

According to David Castaner, the duck was diving in association with goldeneye, scaup, ruddies, a coot and a Redhead. David Castaner further stated.

" It's head was dark but when the sun struck it, it was clearly green.  At times, the back of the head showed stiff feathers suggestive of a merganser's crest."

I have shared photos of the Mystery Duck with subscribers to the Missouri listerv who could open my attachments and with a few other birders. ID guesses so far have included the following hybrid possibilities: Common Goldeneye X Hooded Merganser; Bufflehead X Hooded Merganser; Common Goldeneye X Ruddy Duck; Bufflehead X Ruddy Duck and even combinations involving Barrow's Goldeneye and Tufted Duck. Robert Mangile's website also provides links to examples of some of these other combinations (none of which looks like the instant bird). But amazingly, one person who saw the pictures, said he saw a similar duck at Lake Mozingo in Missouri just yesterday!

Let us know your views.

Bob Fisher
Independence, Missouri
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