thin them with a .22 so it wont be so loud and run the deer away. but, squirrels will bark when they bust you and let other animals know your there, but they also will let you know when a deer is around cause they will run off doing the samething. but i have seen a doe walk right by a squirrel and it scared the piss outta the squirrel and it went running up a tree barking and the doe hauled tail also. they can screw up a hunt quick