Middle Bidwell Park is once again hosting a herd of 200 to 500 goats, courtesy of Capra Environmental Services Corp., to help manage vegetation in the area. The herd will be working their way from Manzanita Avenue between Lindo Channel and Wildwood Avenue to 5 Mile Way, potentially covering about an acre per day. Grazing areas will be enclosed with electric fencing and warning signs will be posted throughout the park. A herdsman and guard dogs will be on duty around the clock to keep an eye on the goats.