Maybe that’s not entirely true, but what is true is that you could shoot a lifetime’s worth of ducks without ever learning how to call ducks, or even owning a duck call. Mallards have a wide vocabulary, but there are only a handful of calls a hunter needs to master, including the basic quack, the greeting call, the comeback call, and the chuckle (variations of this last sound can replicate both excited ducks flying in the air as well as ducks feeding on the water). Companies like Haydel’s Game Calls also make a variety of “other species” calls, including diver calls and wood duck whistles.