Thistlethwaite WMA is a 17-square mile tract of 11,000 acres of mature hardwood forest, boasting the largest diversity of oak species anywhere in the state of Louisiana. Eleven miles of wood trails make hunting, as well as birding and nature walks, very popular. Year-round birding is best along the area's numerous roadsides and ATV trails. In addition to woodland songbirds, raptors such as Red-shouldered Hawk, Mississippi Kite and Broad-winged Hawk appear regularly along these woodland edges. During the winter months, the site's numerous agricultural fields hold waterfowl, shorebirds and sparrows. Thistlethwaite WMA is part of the Red River Birding Trail of American's Wetland Birding Trails.