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!

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. 

Stafford Lake – Novato

9 AM to 1 PM Birding with Bob Atwood No registration or participant limit for this trip. Located west of Novato, Stafford Lake is a beautiful but less-birded area that is productive for waterfowl and raptors. Stafford Lake has had approximately 172 species of birds spotted at it through the years. The county park has facilities and plenty of parking. The mostly level terrain and water views make for pleasant birding as we walk around a portion of the lake and the surrounding area. Rain cancels. DIRECTIONS: From Hwy 101 in Novato, take the exit for San Marin Dr west 2.9 miles. Turn right onto Novato Blvd and follow for 2.6 miles. The park is on the left. Turn left after the gatehouse and travel to the parking lot.

Olompali State Historic Park

Sunday, December 15, 2024 9 AM to 12:30 PM Birding with Rich Cimino (Yellowbilled Tours) and Evan Weissman (Olompali State Historic Park) No registration or participant limit for this trip Join us to admire the winter birds of Olompali State Historic Park in Novato. We’ll explore grassland, savannah, and riparian habitats, as well as the remnants of the 150-year-old Victorian garden. Expect to see and hear overwintering birds such as kinglets, warblers, sparrows, and maybe a Red-breasted Sapsucker or Say’s Phoebe, as well as year-round residents including six woodpecker species, raptors, and quail. We’ll walk at a fairly slow pace, about 1.5 miles roundtrip, on wide gravel and dirt trails, with moderate slope in portions. Bring binoculars if you have them; we’ll also have a few to loan. Rain cancels. DIRECTIONS: Meet at 9 AM in the Olompali State Historic Park parking lot. There is no charge for the trip, but parking is $8, payable by cash, check, or via smartphone with QR code at the parking lot. No fee is charged if you borrow a free State Park pass from your local public library.

Las Gallinas Sanitary District & Hamilton Wetlands

Birding in Marin, Season 10 – Trip 1 Saturday, January 4, 2025 8:30 AM to mid afternoon Birding with Jim White and Bob Battagin Register HERE for this Field Trip Registration required. Registration opens at 8 AM on December 26 Bob and I are leading our Birding in Marin monthly first Saturday field trips for the tenth season sponsored by the MAS. Please join us as we go birding with a goal of finding and sharing 100 species at two of our prime wintering habitats for ducks, shorebirds, raptors and sparrows. Las Gallinas is a great example of generating wildlife habitat with ample human access. This will be a 2 mile walk over a wide, flat packed dirt walkway with plenty of scope views to share closeups. The Hamilton wetlands have been restored with intelligence, sensitivity, and precision. The birds and wildlife have appreciated this and come back in numbers that we expect to share. The walk is flat over a wide, mostly paved walkway, accessible via a ramp. DIRECTIONS: From Hwy 101 in northern San Rafael take Smith Ranch Road east about a mile, just crossing the tracks turn left and park in 1/2 mile near the east end. Meet at Las Gallinas VSD parking lot.

Skagg’s Island Road

Friday, January 10, 2025 10 AM to 1:30 PM Birding with Daniel Edelstein Register HERE for this Field Trip Registration required. Registration opens at 8 AM on December 31, 2024 Daniel invites you to discover the joy of a wilderness-like paradise — Skaggs Island Road — that often attracts dozens of shorebird and duck family members, in addition to uncommon, visiting non-breeding raptors such as Rough-legged Hawk, Ferruginous Hawk, and Merlin (along with sightings of White-tailed Kite and other raptor species). Skaggs Island Road has flat, level hiking for no more than 1.5 miles; bring your lunch, we’ll eat at the bridge approximately 0.6 mile from the parking area at Hwy 37. DIRECTIONS: Closed to the public, Skaggs Island Road is accessed by meeting our group in the parking area adjacent to Hwy 37 (approximately 3 miles east of Reclamation Rd and 2 miles east of the Hwy 121/Sears Point Raceway intersection (at the stoplight). We’ll meet on the north side of Hwy 37 where it intersects with Skaggs Island Road. Here’s a map link that shows where we’ll meet: https://bit.ly/3YYIJeg. Please be careful turning into this road when coming from Marin County. Oncoming traffic is often heavy.

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