The Wallisville Lake Project--a site partner of the Gulf Coast Bird Observatory--is a crucial habitat for both resident bird species and migrants from the tropics. Rookeries and parks within the project area make great stop-offs for birders on their way to the Pineywoods from Houston.
The Mouth of the Trinity River Waterbird Rookery hosts 12 species of nesting waterbirds. Both Cedar Hill Park and Hugo Point Park have trails and boardwalk areas for hiking and birding. The J. J. Mayes Wildlife Trace is a must-see for both driving and walking birders. Stop by the visitor's center at Trinity River Island Recreation Area for maps and information.
Websites:
http://www.swg.usace.army.mil/Wallis/Recreation.asp
http://www.tpwd.state.tx.us/huntwild/wild/wildlife_trails/coastal/upper/anahuac/