The millions of shorebirds that winter on San Francisco Bay make it a state and global Important Bird Area. It is part of the Western Hemisphere Shorebird Reserve Network and is also designated as a Wetland of International Importance under UNESCO’s Ramsar Convention. We’ll start at the viewing platform at Elsie Roemer Bird Sanctuary, which is at the southeast end of Shoreline Drive in Alameda, walk along the shoreline to another viewing platform, and then drive to the Crab Cove…