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

Oct 26

Abbotts Lagoon

OCTOBER 26 @ 8:30 AM - 3:00 PM

Plovers, peregrines and peeps are possible! Carpool leaves Sunvalley at 7:00 am. Meet at 8:30 am at Bear Valley Visitor Center, Point Reyes National Seashore. From I-80 in Vallejo, follow SR 37 19.1 miles to Atherton Avenue, exit and turn left, cross US 101 to San Marin Drive and continue for 3 miles. Turn right on Novato Blvd […]

Nov 02

Charleston Slough/South Bay

NOVEMBER 2 @ 8:30 AM - 2:00 PM

Shorebirds, gulls, and waterfowl should be plentiful and Black Skimmers, Red Knots and grebes are possible. Carpool leaves at 7:30  AM from Sycamore Valley Road Park and Ride. Meet at Terminal Road in Mountain View at 8:30 AM . Go south on I-680, take Exit 12, Mission Boulevard west. Continue through two traffic lights and take I-880 ramp south. […]

Nov 07

Monthly Program: November 2019

NOVEMBER 7 @ 7:00 PM - 9:00 PM

Birding info: Kendall Oei will introduce you to the iNaturalist app and website, with a brief overview of what iNaturalist can do for you and a demonstration of how to create an entry. Main Program: Hummingbirds with Kristiina Hurme and Alejandro Rico-Guevara “To Feed or To Fight: Energetics and Weapons” Energetically constrained animals have evolved adaptations to […]