Usually the later the season the fewer the decoys. Down here in Louisiana we have until Jan. 29 to hunt. These ducks have been called and shot at all the way down. I only use 6 to10 decoys in my spread. Sounds like it's not enough but it works great for me. I do very little calling also. Most of the ducks are call shy. It's easy to tell which ones want to be called at and which ones do not.