Duck hunters are only permitted to use a shotgun of 10 gauge or less, with a capacity of no more than three shells. If the shotgun has more than three rounds, the hunter must "plug" the gun, allowing just three shots before reloading. A rifle is allowed if you're lucky enough to find one in the field; however, it can only be used for hunting deer. The number of ducks you can hunt depends on the size of the area you have permission to hunt. For example, if you're allowed to hunt in a specific lake every year, then you should estimate how many ducks there are based on previous years' data. You can also call local farmers or fishermen who may have information about the number of ducks on their land or water. Last, but not least, check online guides that list the best times to go duck hunting - they usually include tips from people who have been successful in finding and taking birds. Ducks are very resilient animals and will often survive a shooting accident if it isn't too serious. However, if you manage to kill two ducks with one shot, this means that both of them were hit by the bullet. This is illegal because most birds are protected by law. There are several species of ducks worldwide, some of which are rare or endangered. The number of shells you can take per bird varies depending on the species.