Calling in crows would not be shooting them in the act of depredation(from your grandmas field or from your car out in the woods). Not that I care, blast away I hate crows but if you are actively hunting them with calls and decoys... You are also supposed to have a small game license to hunt them. I shoot them all year long on my property, I just don't use the caller anymore once the season is over. I hate those fricken things.