The Anaho Island National Wildlife Refuge is a wildlife refuge on Anaho Island

Anaho Island

Anaho Island is an island in Pyramid Lake, Nevada, USA, on the Pyramid Lake Indian Reservation. It is located in the southeastern part of the lake, approximately four miles east of the community of Sutcliffe...

 in Pyramid Lake, Nevada

Nevada

Nevada is a state in the western, mountain west, and southwestern regions of the United States. With an area of and a population of about 2.7 million, it is the 7th-largest and 35th-most populous state. Over two-thirds of Nevada's people live in the Las Vegas metropolitan area, which contains its...

. The refuge was established by President Woodrow Wilson

Woodrow Wilson

Thomas Woodrow Wilson was the 28th President of the United States, from 1913 to 1921. A leader of the Progressive Movement, he served as President of Princeton University from 1902 to 1910, and then as the Governor of New Jersey from 1911 to 1913...

 in 1913 as a sanctuary for colonial nesting birds. It is home to one of the two largest colonies of Pelicans—American White Pelican

American White Pelican

The American White Pelican is a large aquatic bird from the order Pelecaniformes. It breeds in interior North America, moving south and to the coasts, as far as Central America, in winter....

s—in the western U.S. Other birds found on the island include California Gull

California Gull

The California Gull Larus californicus is a medium-sized gull, smaller on average than the Herring Gull but larger on average than the Ring-billed Gull, though may overlap in size greatly with both....

s, Caspian Tern

Caspian Tern

The Caspian Tern is a species of tern, with a subcosmopolitan but scattered distribution. Despite its extensive range, it is monotypic of its genus, and has no subspecies accepted either...

s, Double-crested Cormorant

Double-crested Cormorant

The Double-crested Cormorant is a member of the cormorant family of seabirds. It occurs along inland waterways as well as in coastal areas, and is widely distributed across North America, from the Aleutian Islands in Alaska down to Florida and Mexico...

s, Great Blue Heron

Great Blue Heron

The Great Blue Heron is a large wading bird in the heron family Ardeidae, common near the shores of open water and in wetlands over most of North and Central America as well as the West Indies and the Galápagos Islands. It is a rare vagrant to Europe, with records from Spain, the Azores and England...

s, Black-crowned Night Heron

Black-crowned Night Heron

The Black-crowned Night Heron commonly abbreviated to just Night Heron in Eurasia, is a medium-sized heron found throughout a large part of the world, except in the coldest regions and Australasia .-Description:Adults are...

s, and Snowy Egret

Snowy Egret

The Snowy Egret is a small white heron. It is the American counterpart to the very similar Old World Little Egret, which has established a foothold in the Bahamas....

s.

No boats are allowed within 500 feet of the refuge. Refuge staff and volunteers visit the island to keep track of birds and band juvenile pelicans. An estimated 8-10,000 pelicans used to return to Anaho Island each spring from their winter homes in Southern California

Southern California

Southern California is a megaregion, or megapolitan area, in the southern area of the U.S. state of California. Large urban areas include Greater Los Angeles and Greater San Diego. The urban area stretches along the coast from Ventura through the Southland and Inland Empire to San Diego...

 and Baja California

Baja California

Baja California officially Estado Libre y Soberano de Baja California is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is both the northernmost and westernmost state of Mexico. Before becoming a state in 1953, the area was known as the North...

, Mexico

Mexico

The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...

. In recent years the number of pelican nests have dropped dramatically, due to water diversions impacting the fish runs of the endangered cui-ui

Cui-ui

The cui-ui, Chasmistes cujus, is a large sucker fish endemic to Pyramid Lake and, prior to its desiccation in the 20th century, Winnemucca Lake in northwestern Nevada. It feeds primarily on zooplankton and possibly on nanoplankton...

, a staple food of the pelican.