This pair of cranes is a popular attraction at the Aquatic Garden. There are many varieties of waterfowl that are attracted to Madison County due to the Wheeler National Wildlife Refuge that extends from Decatur to Huntsville, including portions of Redstone Arsenal and NASA's Marshall Space Flight Center. Considered the eastern most national wildlife refuge of the lower Mississippi Flyway, Wheeler Refuge supports the southern-most and Alabama's only significant concentration of wintering Canada