When we were out on the Gulf yesterday, a pair of cormorants came over to the boat and gave us a good show swimming around under the gin clear water. Then one of them decided to come up over the transom and get into boat with us. After poking it with fishing rods and a gaff, it went up to the bow where it just sat there for a while.
The other one stuck around for a while, but finally took off leaving its buddy on the boat.
Finally, one of us went up to pull the anchor and pushed the bird off the boat. Then it came around and perched on the platform for for over an hour once we persuaded it to stay out of the boat.
The bird just calmly sat there either drying its wings, preening, or putting its head under a wing and sleeping. It finally jumped off as we got the boat up on plane to move to another spot.
I've never seen anything like that before. It must have been a dock pet or something.