Roseate Spoonbill - Juvenile - Judging by the colors, probably a first-year Spoonbill <3
You may notice the fence in the background, this is to keep the Gators in the rookery. The spoonbill is NOT captive in any way. They just choose to roost or nest here because the alligators give them protection from predators such as racoons.
From 2018 Photos