Yes they are smart! Back when I had the permit I swear they knew the range of my shotgun. Rifle isn't allowed for the permit and I wasn't comfortable using one with close neighbors. Besides I suck at accuracy with a rifle!
I went to 3 1/2 inch buckshot to "reach out and touch someone." LOL
RC51 yes if your water level goes down they will take advantage of that. Fortunately that is not a problem here as I have a high capacity well.