Ive been hunting in northern illinois on a river and havent been doing very well. There has been a lot of action but for some reason the ducks wont come close to my spread. I only had 9 mallard decoys but i just bought a dozen more. Is that enough? Is there a certain way to set them up? Would goose decoys help bring in ducks? Im very new to hunting so any help would be greatly appreciated. Thanks in advance!