How many ever is in the boat times 6, no more than 4 mallards of which 2 can be hens! We hunt with 6-7 people sometimes and never have any problems counting that high, and have never went over our limits, not even by 1. It's called respecting your game laws and more importantly knowing the game laws in the state in which you travel to, to take game or fish, bc they are different in each state and different parts of states