I am a lover of all dogs. I favor mixed breeds, and dogs that might get over looked for a good home due to there breeds. I currently love some mixed type of gsd "pitbull" and what I have is young boy that barks quite often but not all the time, he doesn't bark at people at the door, he barks at Merlin when that cat ignores him, he barks at the neighbor dogs when they won't chase him through the fence and he barks at me when he wants outside. And he barks at birds and squirrels in the trees. I keep telling him he won't be able to catch one if he barks at it but honestly I think he just wants to hump it or play with the. He thinks he is larger than life and that everyone want to play with him. And he is so smart training him is so easy even for an amateur like me.