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.

Upcoming Events

Apr 04

MDAS Field Trip — North Briones

APRIL 4 @ 8:30 AM - 12:00 PM

North Briones Tuesday April 4, 8:30 – Noon This walk begins in oak woodlands with lots of spring wildflowers and birds. We then continue through grasslands ending at Sindicich Lagoons. We return the way we came, making about a 3 miles round trip with some climbing. Bring liquids & a snack if you wish. Rating: […]

Apr 05

MDAS Field Trip — Orinda Connector Trail

APRIL 5 @ 8:00 AM - 11:00 AM

Orinda Connector Trail Wednesday, April 5, 2023, 8:00 AM – 11:00 AM A walk through an EBMUD property, requires a trail permit. If you have one bring it with you.  We walk downhill to San Pablo Creek, then toward the face of Briones Dam.  Wood Ducks are hard to find but some spring birds will […]

Apr 06

Monthly Program: April 2023

APRIL 6 @ 7:00 PM - 8:30 PM

Ornitherapy: Watching birds: not only fun, it’s good for you!  Holly Merker Learn why getting your daily dose of Ornitherapy is just what the doctor ordered….Long to-do lists, digital demands, people to connect with- life can be busy! If we allow birds and nature to slow us down, we are practicing “selfcare”. Research shows that […]

Apr 11

MDAS Field Trip — Putah Creek at Pedrick Rd., Davis, CA

APRIL 11 @ 7:30 AM - 2:00 PM

NEW TRIP! Putah Creek at Pedrick Rd., Davis, CA. Tuesday, April 11, 7:30am to 2pm. This delightful, fairly short stretch of Putah Creek (~3/4 miles), can be very productive during Spring migration. It’s a fairly easy walk through lovely riparian right down in the creek bed. And the occasional sandy stretch will often host several […]