Key West is loaded with yard birds.....they had a round up a few years ago but I think it’s probably back to where they were.
OBTW.....nice sneak brag on your trip. Lol!
I actually lived on Oahu when my Dad was stationed there back in the 70s, but I never went to the other islands when we lived there.
"The Key West chickens are protected. By protected, it means that the locals are not permitted to harm them. Key West Wildlife Center lends locals a humane chicken trap to catch stray chickens when the population of the birds outgrows control and voracious hawks leave the area."