Birding Trips

Mt. Diablo Audubon offers over 45 field trips annually for birders of all levels. In a recent year, birders helped to identify 260 species. 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.


Young Birders

Are you 9-17 years old (or a parent of someone this age)? Want to get outside and see new places? Want to meet people your age who like birds and nature? Join the Mt. Diablo Audubon Society Young Birders Club!


Grayson Creek Birders

Do you like the idea of birding that serves a larger purpose? Would you enjoy revisiting local sites regularly to see how bird populations shift through seasons and evolve over time? Join the Grayson Creek Birders team.


East Bay Birding Email Groups

Mt. Diablo Audubon sponsors two East Bay Birding email groups: East Bay Birding-Sightings, which reports the sightings of migrating and unusual birds in Contra Costa and Alameda counties, and the companion East Bay Birding-Discussion, which is for talking about birding topics of a more general nature on the east side of the San Francisco Bay Area.


Birding Resources

Find copies of local birding checklists, order the Breeding Bird Atlas, get guidance on what to do with an injured bird, and access other information related to birding.


Upcoming Field Trips

Dec 08

MDAS Field Trip — American Canyon Wetlands

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

American Canyon Wetlands Thursday, December 8, 8AM-Noon A walk out to the wetlands, ponds and sloughs along the Napa River produces many exciting birding opportunities. We expect plenty of waterfowl, raptors, waders, shorebirds and passerines. It can be quite cold in this area, so bring appropriate warm layers. Availability of rest rooms is uncertain. Rating: […]

American Canyon CA
Dec 10

MDAS Field Trip — Solano County Raptors

DECEMBER 10 @ 9:30 AM - 2:30 PM

Solano County Raptors Saturday, December 10, 9:30 am to mid-afternoon This trip features wintering birds on the edge of the Central Valley. Ferruginous Hawks and Rough-legged Hawks are special targets, and Prairie Falcon and Burrowing Owls are possible. Grassland birds and blackbirds, and ducks and shorebirds at Jepson Prairie (if there is water), where we […]

Siusun City CA
Dec 14

2022 East Contra Costa Christmas Bird Count


The 23rd Annual East-County count will be held Wednesday, December 14. Again, you can participate by being part of a group in the field, or by doing a count at your property if it is within the East-County Count Circle. If you’d like to participate, please send an email to . The countdown event for this one is again virtual, at 7 PM […]

Dec 17

2022 Central Contra Costa Christmas Bird Count


The 68th Annual Central Contra Costa Christmas Bird Count is scheduled for Saturday, December 17, and participants are needed! You can participate by being part of a group in the field, or by doing a count at your property if it is within the Central-County Count Circle. We have many routes to cover with varied habitats and varying degrees of walking involved, so there […]

Jan 07

MDAS Field Trip — Putah Creek

JANUARY 7, 2023 @ 9:00 AM - 2:00 PM

Putah Creek Saturday, January 7, 9 AM – 2 PM This is a great chance to see birds and ducks along Putah Creek and Lake Solano. Possible target birds include Osprey, Lewis’s Woodpecker, Phainopepla, Barrow’s Goldeneye and Hooded Merganser. Dress warmly; this is a cold, windy area. Bring lunch. Exact itinerary to be determined the […]

Winters CA