LLELA Nature Preserve contains a variety of habitats, including prairies, bottomland hardwood forests, wetlands, and cross timbers forest. With such a diversity of habitats, there is a profusion of wildlife here. Mammals such as bobcats, white-tailed deer, and mink can be found, along with birds such as wild turkeys, painted buntings, and dozens of waterfowl species. LLELA is dotted with sloughs, wetlands, creeks, and dry channels, the landscape features originally wrought by the Elm Fork of the Trinity River and its tributaries during flood events. These remain filled by rainwater and flooding, providing areas where one can find wood ducks and other waterfowl, as well as many turtles, wading birds, and amphibians.