This sea of wool and horns is a herd of mostly Angora billy (male) goats being urged along by a four-footed goatherd (just out of the photos). The billys, which belong to Goats Are Us in Orinda, are making their annual trek from Orinda to Berkeley, cleaning out the dry brush and undergrowth as they go. The Lab, UC Berkeley campus, and Tilden Park use the goats as a natural way of reducing fire hazards. You can spot the robust eaters along the Lab's steep slopes. (XBC9705-02218 & XBC9705-02219)