Fish and Wildlife Service, California.
Delevan NWR was established in 1962 with funds from the Migratory Bird Hunting and Conservation Stamp Act (today it is known as the Federal Duck Stamp). It was established to provide feeding and nesting areas for migratory birds however other major objectives include providing habitat and manage for endangered, threatened, or sensitive species of concern; preserving a natural diversity and abundance of flora and fauna; alleviating crop depredation; and providing visitor service activities such hunting and photography.
Waterfowl are present September through April and numbers regularly peak in November and December at over 300,000 ducks and 100,000 geese. The refuge supports one of the largest known populations of palmate-bracted birds-beak (Federally listed endangered plant species) and significant breeding colonies of tricolored blackbirds. Delevan is also an important wintering grounds for Tule Greater White-fronted Geese.
Traveling north or south on I-5:
Delevan NWR does not have any public viewing access, but may be seen from:
- Maxwell Road* (County Road)
- Four Mile Road* (County Road)
*please be cautious when viewing from public roads...they are open to public traffic, and may have soft shoulders
Check station is approximately 5.6 miles northeast from Maxwell
From Interstate 5: