Keep Learning

Our classes range from Beginning Birding to Birding By Ear to more intensive courses for advanced birders. Experts help you name your usual backyard visitors, and find and ID more unusual species.

Protect Habitat

To protect birds, we must defend the places in which they live. Help us support campaigns to preserve wildlands, wetlands and parklands. Join our Community Science bird count projects, and meet fellow enthusiasts!

Go Birding

Field trips are free and range from half-day local destinations, to longer-distance weekend trips to various birding hotspots. Open to members and non-members alike; enjoy a relaxed and informative stroll with our knowledgeable volunteers.

Keep Learning

Our classes range from Beginning Birding to Birding By Ear to more intensive courses for advanced birders. Experts help you name your usual backyard visitors, and find and ID more unusual species.

Protect Habitat

To protect birds, we must defend the places in which they live. Help us support campaigns to preserve wildlands, wetlands and parklands. Join our Community Science bird count projects, and meet fellow enthusiasts!

Go Birding

Field trips are free and range from half-day local destinations, to longer-distance weekend trips to various birding hotspots. Open to members and non-members alike; enjoy a relaxed and informative stroll with our knowledgeable volunteers.

Connecting People with Birds

The Mt. Diablo Audubon Society is committed to protecting birds and  preserving their habitat, and to connecting people of all ages to the fascinating world of birds, with monthly meetings, field trips, classes, and conservation and advocacy programs. The chapter serves the San Francisco Bay Area’s central and eastern Contra Costa County, a bountiful birding territory in which roughly 350 species have been spotted – 150 of them nesting. We welcome everyone interested in any degree of participation, and at all levels of experience.

Spotlight: Birding Trips

Connecting People with Birds

Wild Birds Unlimited is restarting Bird Walks! Sign up at their store in Pleasant Hill.

Mt. Diablo Audubon Society has resumed field trips after a year-and-a-half hiatus due to the COVID-19 pandemic. Please refer to Birding Field Trips page for more information.

Mt. Diablo Audubon on Facebook

Get Involved

Connecting People with Birds

Take a class, or join our popular monthly programs. Take part in a bird count, or mix with legislators and fellow birders on Advocacy Day. Go on a field trip, or volunteer at a conservation event. Whatever your interests, MDAS can help deepen your connection to local birds and birders.

Volunteers Needed

MDAS has the following positions available for anyone with an interest in supporting our mission of Connecting People with Birds.

Outreach Coordinator is responsible for coordinating volunteers to staff MDAS booths and tables, etc at local festivals and other public events at which MDAS has a presence. This is an MDAS Board position.

The Quail Editor is responsible for the publication of the monthly chapter email newsletter. This is an MDAS Board position.

If you or someone you know is interested in any of these positions, please send an email to MDAS President Jerry Britten at . For more information about the responsibilities of these positions, click HERE.

Upcoming Events

Oct 05

MDAS Field Trip — Elsie Roemer Bird Sanctuary

OCTOBER 5 @ 9:00 AM - 1:00 PM

Elsie Roemer Bird Sanctuary, Alameda Wednesday October 5, 9am – 1pm A visit to the Alameda shoreline as the tide rises should produce good views of shorebirds. A viewing platform and trails will give us excellent opportunities to study these birds at close range. We may drive to other nearby locations for additional birding. Hike Rating:  Category 1 – Easy […]

Oct 06

Monthly Program: October 2022

OCTOBER 6 @ 7:00 PM - 9:00 PM

Birding Information: MDAS President Jerry Britten will present highlights of his summer Alaskan birding trip to the High Arctic Tundra and the Anchorage area. Main Program: Gardening for Birds with California Native Plants Eddie Bartley and Noreen Weeden You can have a beautiful native plant garden that attracts amazing birds, butterflies and other wildlife. Learn […]

Oct 08

MDAS/SMD Field Trip—Curry Canyon

OCTOBER 8 @ 8:00 AM - 12:00 PM

Mount Diablo Audubon Society and Save Mount Diablo are partnering up for a hike on Save Mount Diablo’s gorgeous Curry Canyon Ranch. This portion of Curry Canyon Ranch showcases beautiful rangeland ecosystems and valley oak and riparian habitat. We’ll be looking for fall migrants, arriving wintering birds, and raptors. You might even see a golden […]

Oct 15

MDAS Field Trip — Five Brooks & Bear Valley

OCTOBER 15 @ 9:00 AM - 1:00 PM

Five Brooks/Bear Valley, West Marin County Saturday October 15, 9:00am – 1pm This trip visits two inland areas near Point Reyes, environments of trees and meadows that are miles from the windswept dunes. Five Brooks is a reliable location for California Quail. All sorts of interesting birds show up around the pond at Five Brooks: […]