Our dog surprised us on a walk through woodland this evening. She made a dash for the base of a tree where she attacked a squirrel. It came as quite a shock to us. She is a lab with a hint of Ridgeback in her. It was upsetting to us. I suppose that dogs do this. Is it normal/acceptable? As stated in previous threads, I don't profess to be an expert. Cats kill birds and so on through nature. Somebody put my mind at rest please.