On Feb 6, 2011, at 3:58 PM, Carl Haynie wrote:

> In contrast, these same feathers in photos of Western Grebe specimens I examined (a small sample of photos taken by other C.O.A.S.S.T. volunteers recently), exhibit considerably more brown (e.g., one web would be brownish, the other whitish).

You might take a look at the Slater Museum Wing Image collection

http://www.pugetsound.edu/academics/academic-resources/slater-museum/biodiversity-resources/birds/wing-image-collection/grebes/

They have an upper wing (only) of the Clark's

http://www2.ups.edu/biology/museum/CLGRwing17241.jpg

but multiple uppers and lower photos of the Western.

male
http://www2.ups.edu/biology/museum/WEGRwing12385.jpg
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Kevin Purcell (Capitol Hill, Seattle, WA)
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