I think there are enough votes. Because the poll is never ending and will become skewed with the answers given here are the results as of 10:00pm.
Picture of the bill. It is a blue wing. I took the picture for the poll at the same angle as the bill on a blue wing fourtrax had posted earler today. A few got it wrong, most got it right. A few like turtles.
Northern Shoveler 18 (25%)
Blue Wing Teal 42 (58%)correct
I like turtles 13 (18%)
http://www.fototime.com/BF6E62E5AF6A11E/standard.jpg First wing is an immature Shoveler.
Blue Wing Teal 18 (29%)
Northern Shoveler 42 (68%)correct
I like turtles 2 (03%)
http://www.npwrc.usgs.gov/resource/birds/duckplum/shoveler.htm Second wing is an immature Blue Wing.
Northern Shoveler 7 (19%)
Blue Wing Teal 28 (78%)correct
I like turtles 1 (3%)
http://www.npwrc.usgs.gov/resource/birds/duckplum/bwciteal.htmMost are getting the wings right, but they would be difficult for most without a whole bird to look at.
Ishootspoonies, I will pass the buck to you to explain the difference.