6 m old puppy suddenly barking...
I have a 6 month old male GSD that we have had since he was 2 months old, great dog. We love him and the feeling is mutual. Just lately he has found his voice and had begun barking at strangers. What really concerns me is that he really barks at little children. Hair up on the back of his neck, the whole nine yards. My own kids are grown up, 22 & 20, but I took him into Petco yesterday and there were these 2 little 2-3 year olds walking around with their parents. He pulled and barked like crazy trying to get to these kids. How can we get him to overcome this behavior?