Every December, hundreds of Bay Area birders take part in Golden Gate Audubon’s Christmas Bird Counts (CBCs). From before dawn until dusk, they trek through parks, neighborhoods, and wetlands, venture out in boats on the bay, and skirt reservoirs and bayside mudflats to identify the species and count the number of birds at every site.

Spend a fun day outdoors with a team counting individual birds and species, and contributing to our understanding of bird populations! Both beginners and experienced birders welcome. The San Francisco count circle includes the north tower of the Golden Gate Bridge and all of San Francisco, and reaches down the peninsula to San Bruno Mountain and the wetlands north of the San Francisco International Airport. Also blessed with a wide variety of habitats, the San Francisco count generally tops 160 species.