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Humboldt Bay National Wildlife Refuge
Humboldt Bay National Wildlife Refuge is located on Humboldt Bay, on the California North Coast near the cities of Eureka and Arcata. The refuge exists primarily to protect and enhance wetland habitats for migratory water birds using the bay area, including tens of thousands of shorebirds, ducks, geese, swans, and the black brant. Humboldt Bay National Wildlife Refuge, along with other public and private lands around Humboldt Bay, is one of the key stopovers for the millions of migratory birds that rely on the Pacific Flyway. More than 200 bird species, including 80 kinds of water birds and four endangered species, regularly feed, rest, or nest on the refuge or other areas around the bay.
==Ecology==
The bay provides habitat for approximately 100 species of fish, many of which contribute to sport or commercial fisheries, and provides habitat for fish including steelhead, coho, and Chinook salmon. During the spring, the bay's eelgrass beds are a key staging area for brant goose prior to their return to Arctic nesting grounds; and the refuge grasslands provide important habitat for thousands of Aleutian cackling geese. Like many of the refuges in the system, this one was established to preserve habitats recognized to be instrumental to the perpetual survival of migratory birds and other wildlife. Each spring, over 20,000 Aleutian cackling geese roost on the island from late January through early April. Castle Rock National Wildlife Refuge also serves as a haul out for resting marine mammals including harbor seal, northern elephant seal, California sea lion, and Steller sea lion.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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