Immature White Ibis
This guy looks a little “rough” but I believe it is just a juvenile. The brownish feathers indicate youth. This was one of several birds perched on the railing of the observation deck at the Celery Fields. Quite a few birds there have become used to humans and make no effort to fly away until you are right next to them. There is a Great Blue Heron that I see there often and it tolerates me being close so long as I move slowly.