I have never liked the robo ducks. No doubt they were effective at first, particularly on mallards in picked corn fields. And I have seen three guys standing out in the open on athe shoreline with a robo and a dozen decoys kill limits of spoonbills in just a few minutes. They sure were proud standing over their steaming pile of shovelers at the boat ramp. Spoonies are pretty easy to decoy anyway, but it was kind of sad to see them head for that thing like there were being reeled in on a kite string. The robos are real popular with the "whack em' and stack em" crowd up here. Sure, they are legal, just not my kind of duck hunting. But I manage to kill plenty of ducks without them. When I have to use a robo I will give it up.
Some days down on the Missouri River you can see the damn thinks fluttering in every direction but over the last few seasons I have noticed that ducks are flaring off of the spinners. I was set up on the water last week and watched some guys with a spread on a picked corn field adjacent to the water field hunting with some friggin' contaption that consisted of two decoys going around in circles on a pole. I bet that thing needed a car battery for power. Anyway,every bird that crossed the field flared off. I sure as hell wouldn't want to watch that thing going round and round and I don't want to lug a car battery with me,either.