in the beginning of chapter 1 how is buck descried

At the beginning of the story, Buck is a domesticated, but atypical dog who lives in the home of Judge Miller in California. For his entire life, Buck has lived here in splendor. Other dogs are present, but Buck is above them all. Buck is the king of his domain, believing himself the benign master of everyone, including his humans. He is neither a house-dog nor a kennel dog but goes where he wishes. The whole realm belongs to him. He escorts the Judge's daughters on walks; he hunts with his sons, carries his grandchildren on his back. A mix of St. Bernard and Scotch Shepard, Buck weighs only 140 pounds. He is not as large as his father was, but he carries himself like a king. Hunting and walking keep him fit, and he rejoices in sport and play.