I hunted Green Swamp way back in 1988. I heard a few birds and was lucky enough to tag one. I told some friends about it who went back 2-3 times and never heard a bird.

I was like a duck out of water. I was afraid to wade in up to my crotch for fear of a gator or a snake. I heard gators and saw snakes.

I got more aggressive after a local hunter saw me and said, "Son if your boys ain't wet, you ain't gonna kill nuttin' down here. I got braver waded up to my waist to get around. (bring a GPS). It is really weird when you hear a bird after fly-down time and when you look at where the gobbling is coming from, all you see is water and no dry land. You know there's got to be land out there somewhere. You have to be able to know what is flowing water and just standing water due to rain.

I also hunted a small WMA called Upper Hillsborough. I had a bird coming in strong there and then someone who never made a peep
shot him about 50 yards in front of me - scared the hell out of me.

The Osceola is the toughest public land bird to kill. I wish you luck but be prepared to go home with tag in wallet.