i have a pair of 4 year old trumpets. they are chasing me when i walk away, but swim around me when i am in the boat. the real problem is they are chasing my horses. i put 6 horses in the field by the 7 acre pond, and the swans chased them around the 15 acre pasture. i moved the horses to the next field and the swans paced the fence flapping hissing and trumpeting, totally freaking out the horses. i used a paintball gun, but they continue