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

Mt. Diablo Audubon offers over 45 field trips annually for birders of all levels. In a recent year, birders helped to identify 260 species, like this Western Tanager seen enjoying a snack on Bethel Island. From an overnight stay in Mt. Lassen to an easygoing amble around Contra Loma Reservoir, chances are we have a trip that’s right for you.

LEARN MORE

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.

Mt. Diablo Audubon on Facebook

Upcoming Events

Nov 16

Limantour Beach

NOVEMBER 16 @ 8:30 AM - 3:00 PM

This trip includes forest birds on the ridge and ducks, shorebirds and often loons and grebes on the ocean. Tule Elk are often seen. Carpool leaves at 7:00 am from El Nido Ranch Road. Meet at 8:30am at the Bear Valley Visitor Center, Point Reyes National Seashore. Take SR 24 to Oakland, then I-580 west […]

Nov 17

iNaturalist, a Tutorial for Citizen Scientists by Kendall Oei

NOVEMBER 17 @ 8:00 AM - 12:00 PM

Naturalist and nature videographer Kendall Oei will convert you into an active, and interactive, citizen scientist in 90 minutes. An early adaptor to the revolutionary digital app, iNaturalist, developed by Bay Area naturalists and now used globally, Kendall will walk us through the iNaturalist website and the phone app, showing us how we can each become a resource to science. Enrollment required.

Dec 07

Sacramento Refuges

DECEMBER 7

This full-day field trip will include visits to several wonderful wildlife refuges in the Sacramento Valley, highlighting Sacramento and Colusa NWR’s. Collectively these sanctuaries are home to tens of thousands of wintering ducks, geese and swans.  Carpool leaves Sunvalley Mall at 7 AM, or meet the group at 8:15 AM at the I-5 North Dunnigan […]