Hmm, I used to have great mallard shoots, no where near any released birds. I don’t target mallards as much now with the two bird limit, but the few I killed last year all had their toes, and didn’t come from an RSA. Only two times did I even kill a mallard near any buddy ducks.. I think you are seriously overstating the numbers. I sometimes hunt a public spot across the street from a couple thousand RSA ducks, and they never leave it. Not until they are forced to by ice. Didn’t hunt that spot last year, but hunted close- killed zero mallards. I would think, based on your theory, that in the area I am talking about we would kill mallards daily because of the sheer numbers of released birds in the area there- nope. We don’t.