Patrick - I live in Wyoming County, 10 miles from Attica. If you should go to the Genesee County Park Nature Center (the first county park in NY, celebrating 100 years) I am honored to have a display of my decoys there. If you go there, let me know I'll meet you there.
Mr. Ligman - all the things that you say ducks do, Decoys have been carved to mimic. The Cobbs, Ira Hudson, etc. etc. etc. round bottom Flyers, especially Brant were in use on both coasts and ran on wires over the spread. I get your point and understand your reasoning, but round bottom decoys have been made to mimic the birds doing what they do since Lovelock Cave, and most likely prior to that.