Marin Audubon’s Christmas Bird Counts

2021 Southern Marin Christmas Bird Count

After last year’s hiatus due to COVID-19 the 2021 South Marin Christmas Bird Count will take place on New Year’s Day, Saturday, January 1, 2022. The South Marin CBC circle extends from the ocean under the Golden Gate Bridge on the south to Terra Linda on the north, from Bolinas Lagoon on the west to San Francisco Bay and marshes on the east. This count area was designed to include a wide variety of habitats and depending on weather usually produces over 175 different species of birds and over 70,000 individual birds. You can also participate in the count by doing a feeder watch at your home on that day and reporting the results.To sign up please contact Ed Nute, co-compiler, at . There will not be a compilation dinner after the count.

The National Audubon Society administers the Christmas Bird Counts, which is the longest running community science bird project in the nation. The CBCs provide valuable information about the long-term status of bird populations across North America and elsewhere. Each count area covers a 15-mile diameter circle in which teams of volunteers, from novice to expert, count every bird they encounter during the entire day. Everyone is encouraged to participate. For more information about Christmas Bird Counts go to

Ed Nute – Co-Compiler

2021 Additional Christmas Bird Counts in Marin 

POINT REYES CBC, SATURDAY, DECEMBER 18, 2021 – The 50th Point Reyes Christmas Bird Count will be held on Saturday, December 18, 2021. The Point Reyes count was started by Rich Stallcup, Jon Winter and others in 1970. Since then, the count is often among the top five in the U.S. for the number of species sighted, typically over 200. There are always some unexpected finds. The 27 territories within the Point Reyes Count circle are centered around Tomales Bay, stretching from Drake’s Bay and Abbotts Lagoon to Walker Creek and the Chileno Valley. The Point Reyes count welcomes participants of all ages and skill levels. There will not be a compilation dinner after the count. For complete information about the count and dinner and to register go to 

CHEEP THRILLS CBC, THURSDAY, DECEMBER 16 The resurrected Cheep Thrills CBC, will be conducted for the 9th year on December 16, 2021.  This is a count mostly in north Marin and  includes Mt. Burdell, and extends from Hicks Valley and Nicasio Reservoir in West Marin to the Bahia area in the northeast corner of the county. The Cheep Thrills count usually exceeds 160 species.   There will not be a compilation dinner after the count.  For more information go to 
Cheep Thrills is dedicated to the memory of our great friend and teacher, Rich Stallcup. 

Conduct a
Feeder Watch

If you live in the South Marin Christmas Bird Count circle and want to join this year’s count in the comfort of your home, you can become a feeder watcher! Please email your CBC coordinator HERE if you are interested and want to learn more! Field party participants who live in the count circle are invited to count their feeder birds as well.



To access Southern Marin Christmas Bird Count historical data and area maps