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 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.

If a trip is closed when you try to register, click “Contact Organizer and ask to be placed on the waiting list”

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!

Today

  • The Ponds at the Las Gallinas Valley Sanitary District (LGVSD) – San Rafael

    Thursday, January 1, 2026 8:30 AM to noon Birding with Mark Clark Registration is not required. 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 and raptors. 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 restroon in the parking area for public use.

  • Skaggs Island Road

    Friday, January 16, 2026 10:00 AM – 2:00 PM Birding with Daniel Edelstein Register HERE for this Field Trip Registration required. Registration opens January 6 at 8 AM. Skaggs Island Road; flat, level hiking on road for no more than 1.5 miles; lunch at bridge (~.6 mile from the parking area at Highway 37.) 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). 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 Road and 2 miles east of the Highway 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. Please be careful turning into this road when coming from Marin County. Oncoming traffic is often heavy. Here’s a map link that shows where we’ll meet: https://www.google.com/maps/search/Skaggs+Island+Road,+Highway+37/@38.1563398,-122.3935838,14z Daniel is a freelance Birding Guide (WarblerWatch.com) and Consulting Avian Biologist. His web site (WarblerWatch.com) features abundant birding information, in addition to his 17-year-old warbler-centric blog (WarblerWatch.blogspot.com).

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