Edwin, sorry you didn't get any responses. I don't check bird forum much any more (work/school killing me) and when I do, it is usually the binocular or camera forums. Helen had a good suggestion. I will say that in the fall, pretty much any place besides High Island is good to look at. I haven't been there in the fall or winter myself, but plan to go in December.
If I were to go any time this month, I would go to Rollover Pass (now charge a small fee), Bob's Road (kind of rough, but worth it usually for Nelson's & Seaside Sparrows, Whimbrels, etc), Anahuac (both units - mind is blank right now for names of each. Will look them up & post them), Bolivar Flats (when you drive in and see the beach, go right and park by the posts. You will see a sign telling you it is Houston Audubon property. Scope will be good.), Frenchtown Road (very close to the ferry), Offats Bayou (actually in Galveston and entrance is not obvious).
You can try Boy Scout Woods, Smith Oaks and Hooks Woods (TOS property) for sparrows & such. As you drive down road on the Bolivar side, watch the lawns (may see shorebirds) and the electrical wires. On the ferry keep an eye out for ducks - not so sure what would be there yet. Gulls & terns love the ferry of course. Cormorants and pelicans love the pilings by the ferry docks. When you come back in to the Galveston side, look at the ground on the left - Black Skimmers are often sitting there.
I am sure I can come up with more, but that is what comes to mind right now.