Squirrel skins were a valuable currency back in the old days. They were hunted quite industriously. A good dog that barked at squirrels was a good friend for a hunter. These days it is a mistake for a dog to start barking at a squirrel. Squirrels are in good shape during winters when there are lots of cones in spruces, and they can have two litters the following summer. Bird tables are these days very common feeding places for squirrels in the countryside.