National
Backyard Birding
BirdSong Mnemonics
National Birding Hotline Cooperative - Search the archives of "BirdWest"; "BirdChat" and other birding mailing lists.
Frontiers of Bird Identification - Latest cutting edge information and discussion.
Bird Identification - Supplements and subspecies for The Sibley Guide to Birds.
Birds of the Continental United States and Canada
Bent's Life Histories - All species accounts now online courtesy of "Birdzilla."
Ranges of North American Breeding Birds from the Northern Prairie Science Center
Birding, Birdwatching and Wild Birds at About
Scientific discussion of Ornithology - Search the archives of the Ornith-l mailing list.
BirdSource - Historical Christmas bird count data and other great bird projects.
Virtual Birder - The Internet magazine for birders. Test your identification skills and tour birding hotspots.
Surfbirds.com - Anglo-American birding site includes the birder's sketchbook (with many Californian pages), ID articles, pelagic directory etc.
Hummingbird Identification - Paul Conover's excellent hummingbird ID pages.
The Owl Pages - Dan Lockshaw's owl site. Wings of America Org.

California and the Bay Area
Audibon California
Joe Morlan's California Birding Pages
Northern California Birders' Voice Mail (Bird Box) - Read the transcripts or call (415) 681-7422 to learn about the latest rarity sightings and share your sightings with others.
California Bird Records Committee - Document your observations for the ornithological record or check out our photo gallery of rarities.
Western Field Ornithologists - Subscribe to "Western Birds," the premier journal for West Coast birders.
CalBird Mailing List - Latest postings on birding in California.
Bird Walks in the San Francisco Bay Area - Larry Tunstall's calendar of nature events.
BirdingPal - California birders willing to help.
Birding in California
Birds and bird watching in California
Don Roberson's Page - Bird families of the world, identification and distribution topics.
Adam Winer's Page - BirdBox Statitistics, local rarity photos, etc.
South Bay Birders Unlimited - Maps of the salt ponds and tide schedules for Palo Alto.
Mark Eaton's Page - Excellent tips on avoiding seasickness, bird quizzes and more.
Birds West - John Mariani's excellent birding page.
Steve Hampton's Gull Page - Major resource on large gull identification.
Gull Flow Charts - Handouts from my gull identification classes.
Alvaro Jaramillo's Home Page - Mystery photos and analysis; links to other bird identification sites.
Birds of Jasper Ridge - Peter LaTourrette's gallery of outstanding bird photographs.
Don DesJardin's Birds - Another excellent photo gallery.
Birding in California - Mary Scott's Birding Pages
Birds of Prey - Greg Gothard's Site
Watchable Wildlife in California
Where do you want to go birding in California today?
BLM California Home page - gateway to outdoor California's public lands, with recreation, wilderness, hiking, trails and much more

Bird Research Opportunities
Golden Gate Raptor Observatory - Volunteer to be part of the only full time raptor migration study on the West Coast.
Point Reyes Bird Observatory - Participate in avian research.
San Francisco Bay Bird Observatory - Help monitor the avifauna of San Francisco Bay.

Local Weather
San Francisco Five Day Forecast - Plan your birding week at "The Weather Channel."
Offshore Weather - Direct from the Bodega Buoy.
Marine Cloud Cover and Sea Surface Temperature - Latest maps.
Tide and Current Predictor - Plan ahead for rails and shorebirds.

Other Western States
Arizona - Gary Rosenberg's site
Oregon - Greg Gillson's site
Washington - Dan Victor's site
Nevada - Great Basin Bird Observatory