I think this is illegal if the fans are from WILD birds. With the proper permit you can sell the stuff from farmed "wild" game animals. Without this law in place market hunters nearly exterminated every game animal in the country, so it exists for good reason.
As far as the comment about calling 911, I don't think any of us would do that. My question is if Shannon would potentially be in any hot water if it was known that guys were selling wild game "parts" (for lack of a better term) on his board. I have no idea.