Our ( and I think most) german Shepherd has had the "shepherd" bred out of them in favour of the protective qualities that they are reknowned for. Ours has taken a number of chooks and ducks and even after an intensive course of aversion therapy still puts his jaws around a bird if he thinks no one is looking. He is now on his last chance before he gets snipped(haven't decided whether he will get an anesthetic yet) or a new home. one thing going for him though, he's a better mouser than the cat!