Upon further review, I'm going to have to agree with Brett Wolfe, this looks like a small Greater White-fronted Goose. Other than size and perhaps wing length (though if you check the old Audubon Society Master Guide to Birding, you'll see a Greater with wingtips extending beyond the tail), nothing seems to agree with Lesser White-fronted: extent of white on the face, no prominent eyering, a dark nail on the bill, bill color and perhaps bill shape all suggest Greater.

I put a few photos at http://www.sdbirding.com/whitefronted.htm, and I may add some more throughout the night, particularly if there's still some thought that it may be a Lesser.

John Puschock
Wedgwood, Seattle
g_g_allin at hotmail.com
http://www.birdtreks.com

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