Atchafalaya Basin (Cypress Lake and Swamp) West of Baton Rouge LA on I-10.
Good eating at local restaurants, on south side of Breaux Bridge
Also, go south to Lake Fausse Pointe State Park, a choke point for migrating hummingbirds
and New Iberia, LA (Cajun "capitol")
Sabine National Wildlife Refuge Southwest of Cameron, LA (shore birds, gators with an easy access boardwalk)
Beaumont TX, I-10 All you can eat fried seafood. Sartin's Restaurant.
Pecos River Bridge/canyon on US 90, west of Armistad
Lone Red Bud on US 90, between Armistad and Big Bend turnoff (somewhere on left)
While at Big Bend, at Rio Grand Village Camground for wildlife, camp at the loop with the nature trail, if possible. 29.1793578,-102.9542474
Diesel Fried Chicken, intersection of US90 and I-10 in Van Horn, TX
Spring Canyon unit of Rockhound State Park, New Mexico, southeast of Deming (camping at the main unit)