Hunt Wise HW2548: The Flock A Flicker proved to be one of the most popular waterfowl hunting products to come along since the spinning wing decoy. The Mojo Flicker decoys worked when used in multiple units, as they mimic the random, quick \"flashes\" or \"strobe\" given off by a flock of contented ducks sitting on the water or dry ground. Mojo has improved on this ground-breaking concept with the Flock A Flicker 2 4-Pack, including an upgraded housing with all other components same as the original which emits the same flash.