It may look like the common grackles we have here, but it is actually a different species. The song was slightly different too, which is what drove me to find out what it was.
It wasn’t uncommon to find them running around the walkways, or around your feet in search of crumbs at the outside buffet. They certainly had grown accustomed to people. Personally, I had one watch me eat from a chair next to me!
I did get a pair of halfway decent photos of them too. Enjoy!
Greater Antillean Grackle (click photos to enlarge)