We watched a cow and calf (Humpback I think) near the head of Blackstone today. The cow was dragging someone's yellow shrimp pot buoy (and pot probably). All we could make out was Anchorage and a possible boat name of Sea-Alis. She was towing it around pretty good but you could tell it was bothering her. Of all the dives we saw, her tail only came out of the water once and except for a couple breaches, she never pulled it under water. Saw the troopers heading her way, not sure if someone would try and cut the line. She was trailing it about 50 feet behind her.