I know where both are and have worked around Clear Creek. It's full of birds. Thy have some healthy rattlers too. You can add Fort Polk in that mix. The biggest drawback to both Peason and Polk is that both are subject to being closed in certain areas by the Army. I would check Clear Creek out if I were you. Also check to see if you can find an area on Forest Service land in the area.
On a side note....Salt Bayou...as in right outside Slidell??