This Heron came down from a nearby Cypress Tree, one filled with Egret and Heron nests. Rather than fly out to the marsh or river he stayed in the swamp to hunt.
In the right spots here there is plenty to catch anyway. A Great Blue is also big enough that most Alligators in the area would rather get a fish than a poke with their sharp bills.
Well, except Momma, if she has babies nearby this Heron will have a problem.