Field Trips

A listing of currently scheduled MAS field trips in the bay area and California.

Field Trip Reports

Find out what happened on that MAS trip. Photos too.

Field Trip Ethics

Guidelines for responsible birding

Speaker Series

Programs focus on birds and other natural history and are given by experts in their field. Programs are free and open to the public.

Mother’s Day Picnic

For more than 50 years, Marin Audubon Society and Audubon Canyon Ranch have hosted this delightful fundraiser on Mother’s Day.

Field Trips

Oct 05

Rodeo Lagoon – Marin Headlands

OCTOBER 5 @ 7:30 AM - 12:00 PM

Wednesday, October 5, 2022
7:30 AM to noon **Please note 7:30 AM is the correct start time, not 8 AM
Birding with William Legge and David Wiechers
Register HERE for this field trip

Limit of 15 fully vaccinated participants for this trip. Registration opens on our TicketBud sight on September 25 at 8AM.

With large numbers of birds moving through the area this time of year, it’s sure to be an interesting outing with unusual sightings a definite possibility. We’ll start with a 30-40 minute visible migration and sea watch from Rodeo Beach hoping for Parasitic Jaegers as well as other passing goodies before undertaking an extended circuit of Rodeo Lagoon in the search for scarce migrants including early winter wildfowl, shorebirds and fall passerines. More than 60 species should be possible at this time of year. The morning will begin with a sea watch at 7:30 AM.

DIRECTIONS: Head south on Hwy 101 and take the last Sausalito exit just before the Golden Gate Bridge. At the exit stop sign, turn right and go under the freeway, then follow the road down to the left. Within 300 feet turn left at the sign to the Marin Headlands (This is the only available left turn before you begin the descent into Sausalito). You should see the tunnel with the five-minute light. Proceed through the tunnel on Bunker Road to the Rodeo Lagoon Parking Lot at the end and meet by the bridge over the channel to the beach. 


Oct 06

The Ponds at Las Gallinas Valley Sanitary District (LGVSD)

OCTOBER 6 @ 8:30 AM - 11:30 PM

Thursday, October 6, 2022
8:30 AM to 11:30 AM
Birding with Sande and Bob Chilvers 

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

Join old friends and meet new ones as we resume our regularly scheduled walks on the first Thursday of the month at Las Gallinas. Special thanks to Bob and Sande Chilvers
for volunteering once again to lead our monthly walks in search of waterfowl, waders, songbirds, raptors, and shorebirds. With fall migration underway, we are likely to spot some 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. You don’t even have to arrive on time because we spend the first 30-60 minutes studying the birds around the first pond, and our group is easy to find. 

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 or you can use the bathrooms at nearby McInnis Park. 

Oct 22

Olompali State Park – Novato

OCTOBER 22 @ 9:00 AM - 12:00 PM

Saturday, October 22, 2022
9 AM to noon
Birding with Rich Cimino and Janet Bodle
Register HERE for this field trip

There is a limit of 15 participants for this trip. There will not be a waiting list. No drop-ins, please. Registration opens on October 12 at 8 AM.

It’s always an exciting time to birdwatch at Olompali State Historic Park! October can bring fall surprises. This year, with the fires in the northern part of the state, Olompali Park may become home to species typically not seen in the park. Beginning and experienced birders are invited to join leaders Rich Cimino and Janet Bodle to bird the park. We will walk the old ranch road to the park’s reservoir. We hope to see a wide variety of species that thrive in the park’s oak savanna and open grasslands. The field trip will start at 9 AM meeting in the front of the visitor center.

DIRECTIONS: Exit Hwy 101 at Atherton Ave/ San Marin Dr in Novato. Follow the signs to Olompali State Historic Park. A right turn onto the Old Redwood Hwy frontage road will take you to the park. There is an $8 cash only parking fee. Recently, the park gates have been opening by 8:30 AM.