Christmas Bay (5,660 acres)
The Christmas Bay Coastal Preserve is located in the southwestern portion of the Galveston Bay system in Brazoria County. The preserve is home to migratory and resident waterfowl and shorebirds. Christmas Bay, a small secondary bay at the southwestern extreme of the Galveston Bay system, is an important finfish and shellfish nursery area. Seagrasses are probably the most valuable and productive habitats in the bay. Four seagrass species occur in the bay; however, only widgeongrass is found elsewhere in the Galveston Bay system. Brazoria National Wildlife Refuge is adjacent to Christmas Bay and has been a major, positive influence on the health and maintenance of the Christmas Bay ecosystem.
Welder Flats (1,400 acres)
Welder Flats is located in the San Antonio Bay System in Calhoun County. This preserve contains submerged coastal wetlands and numerous species of wading and shore birds, including the whooping crane. Welder Flats is located on the eastern shore of middle San Antonio Bay. The characteristic mid-bay wetlands of Welder Flats consist of saltwater marshes, submerged aquatic vegetation, unvegetated sand and mud flats, and shallow saltwater ponds and lagoons. Because of its location near the Aransas National Wildlife Refuge, Welder Flats plays an integral role in bay waterfowl and wading bird ecology, including providing wintering habitat for the endangered whooping crane.
South Bay (3,400 acres)
South Bay is located in the southernmost extension of the lower Laguna Madre in Cameron County and supports a wide variety of habitat types, including seagrasses, oyster reefs, black mangroves and other salt marsh species, and tidal sand and mud flats. South Bay is a highly productive nursery area for shrimp and finfish and provides excellent feeding, resting and wintering habitat for numerous species of indigenous and migratory birds such as the White Pelican, Brown Pelican, cormorants, Gadwall, Green-winged Teal, and Redhead.