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Our Mission

Clapper Rail

To conserve and restore natural ecosystems, focusing on birds, other wildlife, and their habitats, for the benefit of humanity and the Earth's biological diversity.

Bahia Wetlands

A film on resident wildlife and Marin Audubon’s habitat restoration work underway at Bahia Marsh, on the Petaluma River in Novato, California. Produced by Jeffery Martin as a gift to Marin Audubon.
Watch the film »

Welcome to Marin Audubon Society

For more than 50 years Marin Audubon has worked to protect wildlife habitat in Marin, sometimes stepping in to buy land that is slated for development. We need your help today to purchase a 5.2 acre property that will fill a critical gap in the 300 acre Corte Madera Ecological Reserve.

MAS also provides its members and the public many opportunities to experience the birdlife and nature of Marin County and beyond through Field Trips and Events, our monthly MAS newsletter The Clapper Rail, and the annual Christmas Bird Counts. For a listing of many of our activities and events please check our Calendar.


Marin Audubon Board Elections - On May 14th we will fill four seats on the Board of Directors. To correct the Pesident's Message in the April issue of the Rail, the current Board members nominated for reelection are: Phil Peterson, Ed Nute, Barbara Salzman and our newest Board Member, Katy Zaremba, who was appointed to serve an unexpired term. Please join us at our Speaker Series program on May 14th and vote.

Corte Madera Ecological Reserve

Please Help Us “Close the Gap” In the Corte Madera Ecological Reserve!

After 20 years of negotiation, Marin Audubon Society has reached an agreement to purchase a critical 5.2-acre former tidal marsh that is key to the survival of the endangered Ridgway's Rail (formerly California Clapper Rail) and other wildlife. This campaign will protect and restore, in perpetuity, coastal wetlands in the Corte Madera Creek watershed, filling a critical gap in the 300-acre Corte Madera Ecological Reserve. Read More »

We need to raise $1,075,000 by May 15, 2015. If the property is not purchased by then, it could be lost forever to shoreline development.

The Ecological Reserve includes one of the few marshes around the Bay that has never been diked, as well as 200 acres of restored marsh. Ancient marshes have complex channel systems and vegetation, and support greater diversity and numbers of wildlife. These rare and valuable characteristics will be protected, enhanced and expanded by this acquisition. But only if we “Close the Gap” by January 31!

Read moreRead more and donate to this critical conservation campaign

About UsAbout Us

Mission | History | Board of Directors | Contact Us

Our Mission: To conserve and restore natural ecosystems, focusing on birds, other wildlife, and their habitats, for the benefit of humanity and the Earth's biological diversity.


Bay Area Local Sites and Resources | California |
National & International

An extensive listing of birding and nature resources

MembershipJoin Us

Benefits of Membership | Printable Membership Form [40 KB PDF] | Online Membership Application Form

The success of the Marin Audubon Society depends greatly on our Chapter-Only Members.


MAS Owned Properties | Restoration and Enhancement Projects | History of Bahia

Consistent with its mission, the Marin Audubon Society has been acquiring properties in Marin County with restorable habitat value.


Mission | Triangle Marsh | Bahia

MAS offers many opportunities to meet fellow members and to support our environmental protection and conservation efforts.

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