[EBB Sightings] If I wanted to see Mergansers near Oakland?

I've been working a very hectic schedule lately, and to keep myself sane, I have found myself dreaming about Mergansers.  

Where do you all suggest I go looking, in the Oakland area?

I know that I'm probably braking the rules of this list by asking about birds, instead of telling.  I hope this doesn't cause too much consternation.

Lisa Lazar