Field Trips

Marin Audubon Society is providing a full schedule of free field trips for the 2024 season.

Advance registration is required for most of our trips, nearly all which have size limits to prevent overcrowding. Registration on the MAS website’s Field Trips page will open ten days before the trip date. 

Trips can fill up quickly. Please register early to make sure you get a spot. If you won’t be able to attend a trip that you have registered for, please cancel using the “contact organizer” button on Ticketbud so that the spot may be opened up for someone else.

Attention: Recently Ticketbud has not opened for trip signups precisely at 8:00AM. This has led to confusion among would be participants who assumed the message “There are no tickets available at this time” means the trip is already sold out, but it doesn’t, so please try to sign up again a minute or two later. Ticketbud is working on the problem.

Our field trips are free to our members and the public, but we greatly appreciate your donations to support our programs and conservation projects! A donation of $35 or more qualifies you for an annual membership at Marin Audubon Society! **New Members Only

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, our Northern Spotted Owl Outreach program, and of course our monthly field trips and speaker series! We cannot do these important projects, along with our many other efforts, without the support of our dedicated members!

Blackie’s Pasture -Tiburon

Saturday, November 16, 2024 9:00 AM – 12:00 PM Birding with Lisa Hug Register HERE for this field trip Registration required for this trip. Registration opens on November 6 at 8 AM. This field trip is an eBird workshop for those participating in the CBC in Marin County. We will start our walk on Tiburon's Old Rail Trail, making observations using eBird. We will see waterfowl and shorebirds in the estuary as well as upland suburban residents. Tiburon is a count area on the South Marin CBC coming up on December 28. Experienced birders and Christmas Count leaders as well as eBird newbies can enjoy counting and compiling together in an informal and fun setting. Directions: From Tiburon Blvd. take a right on "Blackie's Pasture". There is plenty of parking and facilities. Meet at the Harvey Rogers Garden at the Old Rail Trail trailhead.

OVERNIGHT TRIP – San Luis Reservoir State Recreation Area & Merced Wildlife Refuge

OVERNIGHT TRIP Saturday, November 16, 2024 10:00 AM to early evening Sunday, November 17, 2024 8:30 AM to mid-afternoon Register HERE for this field trip Registration required for this trip. Registration opens on November 7 at 8 AM. We will explore the San Luis Reservoir State Recreation area with John Fulton, an experienced birder from Stanislaus Audubon. At 4 PM we will move on to Merced NWR for a walk with the Park Naturalist who is also giving a Sandhill Crane Fly- In Presentation to the public at 5. We will be staying overnight in Merced. Sunday morning will find us back at the Reserves for more birding! San Luis Reservoir State Recreation Area is about a 3 hour drive from San Rafael. We will meet at 10 AM on November 16 at the Recreation Area parking lot on CA-33, one half mile north of CA-152. For further information, contact Field Trip Coordinator Alison Pence,

Tennessee Valley Trail

Wednesday, November 23, 2024 8:30 AM – after lunch Birding with Durrell Kapan Register HERE for this field trip Registration required for this trip. Registration opens on November 13 at 8 AM This field trip is a workshop for those participating in the CBC in Marin County. We will start with an eBird refresher based on the MAS November 14 Speaker Series program and then practice taking data to the beach and back. Time permitting, we will climb to the coastal battery for a sea watch and sit, rest, and have a snack or sandwich. This will be great scouting for the CBC! Don’t forget to be prepared for all weather—bring warm layers, a light rain shell, and sunscreen! Meeting place: Tennessee Valley Parking Lot 701 Tennessee Valley Road, Mill Valley

The Ponds at Las Gallinas Sanitary District – San Rafael

Thursday, December 5, 2024 8:30 AM to noon Birding with Mark Clark All participants are welcome to join this trip. We welcome bird enthusiasts of all levels, especially beginning birders, to join leader Mark Clark on our monthly walk around the ponds at Las Gallinas. On our search we’ll be looking for waterfowl, waders, songbirds, raptors and rails. Ducks are now arriving, we are seeing teals, pintails, and shovelers. We are likely to spot some interesting species, so come assist in our search. The packed dirt paths around the ponds are wide, flat and easy to navigate. Heavy rain cancels 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 a portable restroom in the parking area for public use.

Bahia, Horseshoe Pond and Rush Creek

Birding in Marin, Season 9 – Trip 12 Saturday, December 7, 2024 8:30 AM to mid afternoon Birding with Jim White and Bob Battagin Register HERE for this field trip Registration is required and opens November 27 at 8 AM MAS acquired and restored to tidal action the diked bay lands around the residential Bahia neighborhood. As the ebbing tide exposes the mudflats thousands of shore- birds now descend to feed while on the flood tide hundreds of ducks and some gulls float, forage and loaf about. The oak-wooded ridge stretching from Hwy 101 to Bahia, also saved from development by MAS, holds Oak Titmice, White-breasted Nuthatch, Hutton’s Vireo, at least four woodpecker species and many sparrows in the winter. Horseshoe Pond (Homeowners Lagoon) at the southeast end of Topaz is a great place to look for wintering ducks. Goldeneyes, Scaup, Canvasbacks, Buffleheads, and Mergansers seem to like it and it has been Marin’s best place for Barrow’s Goldeneyes the last few years. After lunch we plan to look at the nearby Rush Creek area from the Airport Rd which parallels Hwy 101 north of Atherton. DIRECTIONS: From 101 in north Novato take Atherton Avenue east, take the Y left onto Bugeia which becomes Bahia Drive, near the end at the bottom of the hill take a right onto Topaz, follow Topaz to its end and park. 

Field Trips Webinar Recordings Archive

2021

March
Rare Birds of Marin 2020 – by Joseph Zeno, John King, Lucas Corneliuseen and Mark Schulist

February
– GIS Conservation – The Breeding Birds of Marin County – by William Wiskes – CLICK HERE

January
– Marin’s Breeding Birds (How We Know What We Know) by Dave DeSante – CLICK HERE
– 
New Breading Bird Atlas – by Juan Garcia – CLICK HERE

2020

September
– Snowy Plovers: A Natural History, Breeding Biology & Conservation – CLICK HERE
– Pacific Flyway Shorebird Surveys – CLICK HERE

October
– Diurnal Raptors of Marin – CLICK HERE
– The Natural History of Osprey in Marin County – CLICK HERE
– Red-Tales: Hawkish Behaviors and Migratory Stories – CLICK HERE

November
– Improving Habitat for Central Valley Waterbirds – CLICK HERE