Aransas National Wildlife Refuge is a 115,324-acre (466.7 km2)[1] protected area situated on the southwest side of San Antonio Bay along the Gulf Coast of the U.S. state of Texas.

[4] Bird life includes ducks, herons, egrets, ibises, roseate spoonbills, and the endangered whooping crane, whose population has recovered significantly since the 1940s.

Other fauna include American alligators, collared peccaries, snakes, and bobcats, which inhabit the refuge's grasslands, blackjack oak thickets, freshwater ponds, and marshes.

In its entirety, the refuge consists of 115,324 acres, and is the largest Fish and Wildlife Service protected area in the state of Texas.

[1] This article incorporates public domain material from websites or documents of the United States Fish and Wildlife Service.