While not from the West Coast I'll put a good word in for Vancouver Island. I've spent some time on the east side from Victoria to Campbell River and there is certainly a lot to see and photograph.

Last April, in 48 hours in Nanaimo I saw several "life list" species including Harlequin Ducks, Brewer's Blackbird, Audobon's Warbler and a California Quail (shown here). I got photographs of these and several other species. Of course you've also got eagles, Black Oyster catchers and many many more species.

I'm sure the Glenn Bartley could provide much more information than I can.

Rbel XT, Sigma 50-500mm @ ISO 400 Handheld. The bird never left the thicket so this was the best image that I could manage.