My grandma lived on a lake where some A hole killed a female swan. Her mate "Jake" would attack anyone on a canoe and had me trapped a couple times on the wrong end of the dock. Sneaky so and so came up on land and snuck up the back side of the dock. He was a jerk but with good reason but he was a jerk before that also. I dont remember every detail but I think someone in a canoe found him by her side and they took her dead body from him. So maybe the reason he didnt like canoes. If I remember correctly she was shot....could be wrong may have been hit by a boat. Either way someones fault.