Havasu National Wildlife Refuge operate and maintain the refuge facilities and programs by providing volunteer labor. Havasu National Wildlife Refuge Havasu National Wildlife Refuge is a U.S. National Wildlife Refuge on the lower Colorado River in Arizona and California. It preserves habitat for desert bighorn sheep to the endangered southwestern willow flycatcher, birds and other animals. The refuge protects 30 river miles - of shoreline - from Needles, California, to Lake Havasu City, Arizona. One of the last remaining natural stretches of the lower Colorado River flows through the Topock Gorge. Animal species that inhabit this refuge include peregrine falcon, coyote, fox, desert bighorn
Lake Havasu Smallmouth bass, Striped bass, Carp, Catfish (Channel), Catfish (Flathead), Crappie, Razorback sucker, Redear Sunfish, Sunfish (Cetrarchidae). White sturgeon were stocked in Lake Havasu in 1967 and 1968 from stock obtained from San Pablo Bay, California. While some dead sturgeon were found downstream from Havasu (probably killed during passage over dams), living fish have not been recorded, but may still exist along the southern end of Lake Havasu near Parker Dam. Sturgeon have been known to grow upwards of 20 feet (6 meters) and can live in excess of 100 years and many in and around Lake Havasu continue in their