I typically use a dozen GHG Magnum size mallards with 2 or 3 baby mojos. I used to use the same setup but with Black Duck Decoys because here in Maine they used to be the main species, but since the population went down I switched to mallards, more color too. I hunt small water so I don't need many decoys. I mainly hunt wood ducks, I occasionally will through some wood duck dekes out but it depends on how much room I have in my canoe.