Southern Marin Christmas Bird Count Historical Data by Species and Area Maps

This page is a wonderful resource if you’re interested in the data we’ve obtained from our Count over the years, or would like to download a map of the area where you will be counting. It includes data sheets for the entire Count, and for each individual area. Each data sheet provides the complete numbers, by species, of all birds that were counted on each year’s CBC, from 1978 through 2009. Participants can use these sheets to determine which species they might expect to see in a particular area. Also, there are maps for the each area, and one with an overview of the complete Count circle. All the files are in PDF format, and you can save them on your computer for further analysis.

Click image below for larger version

Area Maps

Count Circle map with areas.pdf Count Circle map.pdf
ALPINE LAKE list.pdf Alpine Lake map part 1.pdf Alpine Lake map part 2.pdf  
Bay map 1.pdf Bay map 2.pdf Bay map 3 – portion.pdf  
Bolinas Lagoon list.pdf BOLINAS map.pdf BOLINAS map 2.pdf  
Bon Tempe list.pdf Bon Tempe map 1.pdf Bon Tempe map 2.pdf  
Corte Madera Marsh List.pdf CORTE MADERA MARSH map.pdf    
Fairfax list.pdf Fairfax map.pdf    
Ft Cronkhite List.pdf Ft Cronkhite Map 1.pdf Ft Cronkhite Map 2.pdf Ft Cronkhite Map 3.pdf
Larkspur – Corte Madera list.pdf Larkspur – Corte Madera map.pdf    
Mill Valley list.pdf Mill Valley map.pdf    
Mill Valley Marsh list.pdf Mill Valley Marsh map.pdf    
Muir Beach List.pdf Muir Beach Map 1.pdf Muir Beach Map 2.pdf Muir Beach Map 3.pdf
Muir Woods list.pdf Muir Woods map 1.pdf Muir Woods map 2.pdf  
Offshore – full count circle map.pdf Offshore list.pdf Offshore map alt partial.pdf  
Offshore map part 1.pdf Offshore map part 2.pdf Offshore map part 3.pdf  
PHOENIX LAKE list.pdf PHOENIX LAKE map.pdf    
Rock Springs – Mt Tam list.pdf Rock Springs – Mt Tam map Part 1.pdf Rock Springs – Mt Tam map Part 2.pdf  
San Rafael list.pdf San Rafael map.pdf    
Sausalito list.pdf Sausalito map.pdf    
Stinson Beach list.pdf STINSON BEACH map.pdf    
STRAWBERRY list.pdf STRAWBERRY map.pdf    
Tennessee Valley List.pdf Tennessee Valley Map.pdf    
Terra Linda list.pdf Terra Linda map.pdf    
Tiburon list.pdf Tiburon map.pdf    


Data from Past Counts

CBC-S Marin – Larkspur 2010-2018

CBC-S Marin – Fairfax 2010-2018

CBC-S Marin – Corte Madera Marsh 2010-2018

CBC-S Marin – Bon Tempe Lake 2010-2018

CBC-S Marin – Bay-2010-2018

CBC-S Marin – Audubon CanyonRanch 2010-2018

CBC-S Marin – Alpine Lake 2010-2018

2013 Southern Marin CBC Results.pdf

2009 S Marin CBC – All Areas.pdf

S Marin CBC 2008 Areas.pdf

S Marin CBC 1975-2009.pdf

S Marin CBC 1978-2009 – Alpine Lake.pdf

S Marin CBC 1978-2009 – Audubon Canyon Ranch.pdf

S Marin CBC 1978-2009 – Bolinas Lagoon.pdf

S Marin CBC 1978-2009 – Bon Tempe.pdf

S Marin CBC 1978-2009 – Corte Madera Marsh.pdf

S Marin CBC 1978-2009 – Feeder Watchers.pdf

S Marin CBC 1978-2009 – Fort Cronkhite.pdf

S Marin CBC 1978-2009 – Larkspur.pdf

S Marin CBC 1978-2009 – Mill Valley Marsh.pdf

S Marin CBC 1978-2009 – Muir Beach.pdf

S Marin CBC 1978-2009 – Muir Woods.pdf

S Marin CBC 1978-2009 – Off-Shore.pdf

S Marin CBC 1978-2009 – Phoenix Lake.pdf

S Marin CBC 1978-2009 – Rock Springs.pdf

S Marin CBC 1978-2009 – San Rafael.pdf

S Marin CBC 1978-2009 – Sausalito.pdf

S Marin CBC 1978-2009 – Stinson Beach.pdf

S Marin CBC 1978-2009 – Strawberry.pdf

S Marin CBC 1978-2009 – Tennessee Valley.pdf

S Marin CBC 1978-2009 – Terra Linda.pdf

S Marin CBC 1978-2009 – Tiburon.pdf

S Marin CBC 1980-2009 – Mill Valley.pdf

S Marin CBC 1982-2009 – Fairfax.pdf

S Marin CBC 1988-2009 – Richardson Bay.pdf

Field Trips

Dec 10

Corte Madera Ecological Reserve – December #2

DECEMBER 10 @ 9:00 AM - 12:00 PM

Saturday, December 10, 2022
9:00 AM to noon
Birding with Bryan Flaig
Register HERE for this field trip

Registration opens on Thursday, November 30 at 8 AM. Trip limit is 20 participants. No drop ins, please. 

This trip is perfect for beginning birders looking to learn how to identify waterfowl and shorebirds, as well as experienced birders interested in honing their skills. Corte Madera Ecological Reserve contains a variety of birding habitats, like tidal ponds, pickleweed marshes and a high tide refuge purchased by Marin Audubon in 2016. Much of the area has undergone extensive restoration for rare and endangered salt marsh species.

On this field trip, we will hike a short distance to explore the marsh at high tide, searching for elusive Ridgway’s Rails and winter residents. We’ll walk along the east side of Shorebird Marsh (pond), observing the wide variety of ducks, gulls, and wading shorebirds that frequent the area this time of year.

Restrooms are available at nearby stores (Trader Joe’s), but not on the marsh. Bring binoculars, scopes, layers, water, and snacks. Plan for a 1.5 to 2 mile walk on flat terrain. Light rain does not cancel the trip.

DIRECTIONS: Corte Madera Ecological Reserve is located behind Trader Joe’s in Corte Madera. Meet in the parking lot behind the store, accessed by the driveway on the south side of World Market. 

Become a chapter supporting member of the Marin Audubon Society starting at $35 a year, or RENEW your membership today! Your membership helps to fund important efforts such as our ongoing habitat restoration projects, the Monarch Rescue Project, and our Northern Spotted Owl Outreach program. We cannot do these important projects, along with our many other efforts, without the support of our dedicated members!

Jan 05

The Ponds at Las Gallinas Sanitary District (LGVSD)

JANUARY 5, 2023 @ 8:30 AM - 11:30 AM

Thursday, January 5, 2022
8:30 to 11:30 AM
Birding with Sande and Bob Chilvers 

All participants are welcome to join this trip. No registration required. 

Join old friends and meet new ones on our regularly scheduled walks on the first Thursday of the month at Las Gallinas. With fall migration just about over, we might see more waterfowl and spot interesting species, so come assist in our search.
We welcome bird enthusiasts of all levels. We all help each other to find and identify the birds, and there are usually several experienced birders to assist. 

DIRECTIONS: From Hwy 101, exit at Smith Ranch Rd. Drive east on Smith Ranch Rd toward McInnis Park. Turn left immediately after crossing the railroad tracks and drive about 0.5 mile through the LGVSD gates and into the parking lot at the end of the road. Meet the group by the bridge just past the parking lot. There is an outhouse in the parking area for public use. 

Jan 07


JANUARY 7, 2023 @ 8:30 AM - 3:00 PM

Birding in Marin Season 8-Trip 1
Saturday, January 7, 2023
8:30 AM to mid afternoon
Birding with Jim White and Bob Battagin
Register HERE for this field trip

Registration opens on December 28, 2022 at 8 AM. Trip limit is 15 participants. No drop-ins, please.

A healthy happy New Year to you all. Bob and I are pleased to share the bird rich Stinson Beach / Bolinas birding area with you. Coupled with non freezing winter weather and many diverse habitats the CBC, Southern Marin Christmas Bird Counts, show this to be most specie rich, birdiest, area in Southern Marin county. These habitats include the ocean, beaches, rocky shores, a large lagoon with acres of mudflats, Douglas Fir and Redwood forests, Alder riparian, parking lots, residential and more. The CBC data show an average of over 125 specie winter in this area. Plus, many of these birds, like ducks, gulls and shorebirds, are rather easy to see as they float about on the water or walk along the open shores. Can we find 100 species today?

Thanks can be given today to the founders of Marin Audubon and some conservation minded elders for the parks, open space, public access, and wildlife habitats in much of the country and around Bolinas Lagoon. Dr Martin Griffith was instrumental in saving Bolinas harbor from a hotel and yacht club destination and he is commemorated at the heron and egret rookery that we will pass along the east side of the lagoon.

So start your year list if you haven’t already. Bob is adept with ebird but he is recovering from hip replacement surgery. We strive to help all of our participants to see or hear all of the birds that we encounter but that is a goal not quite a reality. Let’s go birding!

Meet at 8:30 at the Stinson/Bolinas School on Highway 1

Become a chapter supporting member of the Marin Audubon Society starting at $35 a year, or RENEW your membership today! Your membership helps to fund important efforts such as our ongoing habitat restoration projects, the Monarch Rescue Project, and our Northern Spotted Owl Outreach program. We cannot do these important projects, along with our many other efforts, without the support of our dedicated members!

Jan 24

Hamilton Wetlands

JANUARY 24, 2023 @ 10:00 AM - 2:00 PM

Tuesday, January 24, 2023
10 AM to 2 PM
Birding with Daniel Edelstein
Register HERE for this field trip

Registration opens January 14 at 8 AM.. Trip limit is 15 participants. No drop-ins, please.

We’ll pursue sightings of visiting shorebird, duck, gull, and songbird species for this area, including uncommon to rare species such as Lesser Yellowlegs, Western Snowy Plover, Glaucous Gull, Lesser Scaup, Barrow’s Goldeneye, Eurasian/Common Green-winged Teal, and Redhead.

Feel free to pack a lunch and beverage. Spotting scope recommended, but not essential.

Daniel is a long-time Avian Biologist, Birding Guide, and college birding instructor (

Directions: From US-101N, take exit 458, take right fork to continue on Nave Dr. Make a right on Main Gate Road, continue onto Palm Drive, right onto Hangar Ave, continue to South Hamilton Park, near the end of the road. Parking is available in the Park’s parking lot. Meet at the Hamilton Wetlands trailhead, near the South Hamilton Park playground.

Feb 05

Winter Birds of the Delta – Boat Trip

FEBRUARY 5, 2023 @ 9:00 AM - 3:00 PM

Birding with David Wimpfheimer
Sunday, February 5th, 2023
Boat departs at 9 AM. Plan to arrive early!
Register HERE for this field trip. Please see below for important registration information.

The trip costs $135. Limited to 25 people. Registration for this trip opens January 9 at 8AM. Tickets may be cancelled until February 2 at 12 noonCancellations will be refunded MINUS the TicketBud service charges.

If tickets aren’t available, you may sign up for the waitlist by clicking the “Contact Organizer” prompt on Ticketbud and leaving your name and phone number. 

This very popular trip is being held the first weekend in Feb on Sunday Feb 5. We’ll depart from the Antioch Marina at 9AM and enter the San Joaquin River, keeping an eye out for overwintering birds and any marine (or other) animals that happen to show up. As we head east, we enter a number of the smaller sloughs and waterways with views out over the flooded agricultural fields that provide a refuge for flocks that nest in the north but winter here.

Along with the flocks of snow geese, white fronted geese and Tundra swans, numerous ducks, shorebirds, and raptors are usually spotted. Well known birder and naturalist David Wimpfheimer will provide commentary and Ronn Patterson (captain and naturalist) will fill in bits about the history of the delta as we transit this altered but still viable ecosystem.

Coffee, tea, hot chocolate is provided, bring lunch and snacks. Bad weather can cancel as with any winter trip. Light rain will not cancel.

Ticket holders will receive directions to the Antioch Marina, where the trip begins and ends, and other instructions, approximately one week prior to the trip. 

Inclement weather will reschedule the trip to Sunday, February 19.