Here's Ozzy roosting on the mizzen mast.
With a dead fish.

Ozzy needs to announce their presence -- with a fish -- on a perch. We have no idea why.
"You've got a nice fish," we say. "Why call attention to it? Do you want to start a fight with another Osprey?"
Ozzy likes the view from the mizzen mast. Lots of water to survey. Lots of other birds to monitor.
Sadly, Ozzy likes to eat on top of the mizzen mast.
Which means Ozzy also tends to poop on the poop deck. Not always.

The dropped bones can hurt when you walk around barefooted.
Some nights Ozzy takes the fish elsewhere to finish their dinner. We like those nights.