It depends on where. I work for the city of boulder and they are way protected there. We actually have the plauge on the premises of our drinkind water facility and it doesnt bother them, the boulderites that is. It bothers me plenty and I would love to see the little buggers extinguished! But there are places in colorado you can shoot them. As well, if you own property that you can legally shoot on, you are allowed to shoot them if they are being a nuessance. I think the rule is noo shooting them east of I 25 unless you own land. EJ