A blind is always nice , for woodys I like a simple bench behind some brush .
I set my wood duck decoys a few feet away from the brush or cat tail line.
If you plan on AM hunts ,make the blind easy axcess ,splashing thru the swamp will scare all the woodies out before shooting time. Talking ect will flush them out early also.
Also find out where the birds go to feed , then move to shoot the birds as they leave the swamp. High speed low light pass shooting .
For the AM hunts decoys are realy not needed.
For PM hunts ,thats when I bother to put out decoys.

Have fun

Johnch