The mixture of brushland, the sometimes marshy margins and open waters of Lake Corpus Christi, and the riparian woodlands along the Nueces River provide a diverse ecological area. The park represents one of the few remaining stands of brushland in the area and, as a result, provides habitat to a wide variety of animals. The park and nearby natural areas provide an important landfall for Neotropical migrants and play an even greater role in conserving plants and animals native to the mesquite grassland. Common birds within the park include the black-bellied whistling-duck, purple gallinule, white-winged dove, pauraque, long-billed thrasher, white-eyed vireo, pyrrhuloxia and black-throated sparrow. Common mammals include javelina and white-tailed deer. Popular fish include big blue, channel and yellow catfish and sunfish, bass and crappie.