Laguna Atascosa National Wildlife Refuge

Laguna Atascosa National Wildlife Refuge is the largest protected area of natural habitat left in the Lower Rio Grande Valley. The refuge is located almost entirely in Cameron County, Texas (near Harlingen), although a very small part of its northernmost point extends into southern Willacy County.
Fauna.
The Peregrine Fund began reintroducing captive-bred northern aplomado falcons ("Falco femoralis septentrionalis") to the refuge in 1985, which had been nearly extirpated from the Southwestern United States; today, it is home to 26 pairs. Nine other endangered or threatened species inhabit the refuge, such as the Texas ocelot ("Leopardus pardalis albescens") and Gulf Coast jaguarundi ("Puma yagouaroundi cacomitli"), rare wild cats. Programs at the refuge include vegetation and wetland restoration.