Field Trips
Marin Audubon Society provides a full schedule of field trips to our members and the public.
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 wish to be added to a waitlist or want to cancel a trip you registered for, contact
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!
Events
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Hamilton Wetlands – Novato
Friday, February 20, 2026 8:30 AM to noon Birding with David Sexton and Matt Keller No registration required. All participants are welcome to join this trip. Birders of all experience levels are welcome to join us for an exciting morning at Hamilton Wetlands with Point Blue Conservation Science! Spotting scopes and binoculars will be available. We recommend bringing your own pair of binoculars, water, sun protection, layers of clothing, and comfortable walking shoes. We will be on a wide, flat compacted dirt/gravel levee. A fully accessible bathroom will be available at the start and end of the event. Directions: meet at Point Blue’s Novato Baylands native plant nursery at 737 Aberdeen Road, Novato, CA. From Hwy 101, take exit 458 to merge onto Nave Dr toward Hamilton Field. Turn right onto Hamilton Pkwy. Turn left through an open gate onto Aberdeen Rd, then keep to the right at the fork to proceed to the nursery.
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Rodeo Lagoon – Marin Headlands
With early spring migration underway will be looking out for migrant wildfowl, grebes, loons, gulls, and passerines. As usual, the weather will dictate our focus with onshore northwest winds ideal for spring sea watches, while offshore easterly winds promise a good selection of late winter and early summer passerine migrants. Join us for a Sea Watch at 7:30 AM or arrive later at 8:00 AM for a circuit of the lagoon. A brief mid-morning ‘coffee-stop’ is planned at Headlands Center for the Arts and it would be appreciated if participants come willing to contribute via the onsite ‘tip-jar’ as a thank you to the Headlands Center for the Arts for accommodating our group. This field trip is less suitable for beginners.
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