http://www.aldeer.com/forum/ubbthreads.php?ubb=showflat&Number=2738581&page=1Scroll down to see the reported kills per county. Baldwin is way down the list and you'd have to get online with the state site to even find Mobile. 141 for Baldwin. Mobile would likely be at the very bottom. Combine that with minimal acreage, river flooding and the secretive nature of a turkey Hunter and Public land questions on a public forum.......good luck.
The Upper Delta would be the best bet, but it has been under water since December and you'll be lucky to hunt it in the next month. There just aren't a lot of options. I've never been to Grand Bay, but would imagine it is hunted hard if there are many birds.