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Yuba Pass (2-day outing) CANCELLED

Yuba Pass Yuba Pass, Yuba Pass Road, Calpine, CA, United States

This outing is cancelled for this year.  Please go out and go birding on your own! This is always a productive and well-favored weekend trip to the northern Sierra which requires driving and walking, some of it over rough terrain. Saturday we will bird in the Sierra Valley for basin birds.  Sunday we will be birding […]

San Mateo Coast – CANCELLED

McDonald's Half-Moon Bay 100 N Cabrillo Highway, Half Moon Bay, CA, United States

In light of the continuning COVID 19 crisis, Mt. Diablo Audubon Society has canceled scheduled field trips through August 2020. If the timing of this order changes, we will reassess the situation and send another message. Please check our website and our Facebook page for updates.

Frank’s Dump—High Tide – CANCELLED

Hayward Regional Shoreline 3010 W. Winton Ave, Hayward, CA, United States

In light of the continuning COVID 19 crisis, Mt. Diablo Audubon Society has canceled scheduled field trips through August 2020. If the timing of this order changes, we will reassess the situation and send another message. Please check our website and our Facebook page for updates.

Bodega Bay – CANCELLED

Tides Restaurant Bodega Bay 835Bay Highway, Bodega Bay, CA, United States

In light of the continuning COVID 19 crisis, Mt. Diablo Audubon Society has canceled scheduled field trips through August 2020. If the timing of this order changes, we will reassess the situation and send another message. Please check our website and our Facebook page for updates.

2020 East County Christmas Bird Count

Hold the date for the 20th annual East Contra Costa County Christmas Bird Count!  Species and total numbers of birds within this count circle will be censused.  To participate in field trips led by experienced birders on this special occasion, or to tally birds at your yard/feeder if you live within the count circle, contact one of […]

2020 Central County Christmas Bird Count

Hold the date for the Central Contra Costa County Christmas Bird Count, a tradition going back to 1955! Species and total numbers of birds within this count circle will be censused.  To participate in field trips led by experienced birders on this special occasion, or to tally birds at your yard/feeder if you live within the count […]

MDAS Field Trip—Jewel Lake

Jewel Lake, Tilden Nature Area, California 600 Canon Dr, Berkeley, CA 94708, Berkeley, CA, United States

Tilden Regional Park.  Birds are migrating already and will be walking near the Nature Center and Jewel Lake in Tilden Regional Park. A short morning visit may allow us to see Wilson's, Black-throated Gray and Yellow Warblers, Red-breasted Nuthatches and more. This hike is limited to 15 participants. All Field Trips are first-registered, first-served. Participants […]

Free

MDAS/SMD Field Trip—Curry Canyon

Curry Canyon Ranch

Join us on a flat hike through Curry Canyon, Save Mount Diablo's signature property on the eastern slope of Mount Diablo. We will look for some lingering fall migrants, early-arriving wintering birds, and raptors along this beautiful riparian corridor. This is a joint MDAS/SMD hike, and registration is through SMD's Discover Diablo Event page. Leader: […]

Free

MDAS Field Trip—Elsie Roemer Bird Sanctuary

Elsie Roemer Bird Sanctuary Shore Line Drive, Broadway, Alameda, CA, United States

Elsie Roemer Bird Sanctuary.  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. Fifteen participants maximum. Category 1: Easy, little or […]

Free

MDAS Field Trip—Charleston Slough

Charleston Slough Mountain View, CA, United States

We see a variety of birds on the water on this trip. Locations might include Charleston Slough, Shoreline Lake, Palo Alto Baylands, Alviso and Redwood Shores. This hike is limited to 15 participants. All Field Trips are first-registered, first-served. Participants acknowledge the MDAS Liability Waiver (available during registration). Rating: Moderate Distance: We do some walking, […]

Free

MDAS Field Trip—Mt. View Sanitary/McNabney Marsh

Mountain View Sanitary District 3800 Arthur Rd, Martinez, CA, United States

We expect to see a variety of water birds here, from grebes and ducks, to waders and peeps. Marsh passerines and raptors might also be present. This hike is limited to 20 participants. All Field Trips are first-registered, first-served. Participants acknowledge the MDAS Liability Waiver (available during registration). Rating: Moderate Elevation change: N/A Leader: Randy […]

Free

MDAS Field Trip—Sacramento/Colusa National Wildlife Refuges

Sacramento/Colusa National Wildlife Refuges Dunnigan Northbound Rest Area I-5 North of Dunnigan, Dunnigan, United States

Sacramento/Colusa National Wildlife Refuges Saturday, December 4, 8:15 AM-5 PM Leader: Beth Branthaver, 510-502-4869 All the migratory birds will have arrived for the duration of the winter and we expect to see plenty of waterfowl, raptors, other birds, and hopefully Sandhill Cranes. We will drive the auto tour routes at both of these refuges and […]

Free

MDAS Field Trip—American Canyon Wetlands

American Canyon Wetlands Edge Park 2 Eucalyptus Drive, American Canyon, CA, United States

American Canyon Wetlands Monday, December 6, 9 AM-Noon Leaders: Chris & Teri Wills, 925-408-5364 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. The parking lot porta-potty was removed in July and may or may not […]

Free

2021 East County Christmas Bird Count

Hold the date for the 20th annual East Contra Costa County Christmas Bird Count!  Species and total numbers of birds within this count circle will be censused.  To participate in field trips led by experienced birders on this special occasion, or to tally birds at your yard/feeder if you live within the count circle, contact one of […]

2021 Central County Christmas Bird Count

Hold the date for the Central Contra Costa County Christmas Bird Count, a tradition going back to 1955! Species and total numbers of birds within this count circle will be censused.  To participate in field trips led by experienced birders on this special occasion, or to tally birds at your yard/feeder if you live within the count […]

MDAS Field Trip—Lake Merritt and Arrowhead Marsh–High Tide

Lake Merritt 699 Bellevue Ave, Oakland, CA, United States

Lake Merritt and Arrowhead Marsh--High Tide Monday January 3, 8:30 AM-1 PM Leader: Sandy Ritchie, 925-685-8048 Winter ducks on Lake Merritt and other birds usually means easy viewing from the sidewalk. The lake is one of the few places in the Bay Area where Barrow's Goldeneyes can be seen. An entry fee past the gate […]

Free

MDAS Field Trip—East Contra Costa County

Big Break Regional Shoreline 69 Big Break Road, Oakley, CA, United States

East Contra Costa County Wednesday, January 12, 9 AM-1 PM Leader: Paul Schorr, 925-988-0070 We will be birding at Big Break/Delta Science Center, Iron House Sanitary, and possibly other places in the East Contra Costa. Usually good for waterfowl, raptors and some passerines. Dress warmly, bring lunch and drinks. Rating: Category 1-Easy Elevation change: N/A Leader: Paul Schorr, […]

Free

MDAS Field Trip—Shollenberger Park/Ellis Creek

Shollenberger Park 1400 Cader Lane, Petaluma, CA, United States

Shollenberger Park/Ellis Creek Saturday, January 15, 8:30-2 PM Leader: Sandy Ritchie, 925-685-8048 Both of these locations are great for wintering waders, shorebirds, waterfowl and a few raptors. Bring lunch and a beverage. Rating: Category 1-Easy Elevation change: N/A Leader: Sandy Ritchie, 925-685-8048 Meet: Point Blue parking lot at 8:30 AM Directions: Take I-680 across the Benicia Bridge. Go west […]

Free

MDAS Field Trip—Martinez Waterfront Birds

Waterbird Regional Preserve, Martinez 2701 Waterfront Rd., Martinez, CA, United States

Martinez Waterfront Birds Tuesday, January 25, 9 AM-2 PM Leader: Tracy Farrington, 925-788-6223 We will be birding waterfront areas in the Martinez area, looking for shorebirds, waders, waterfowl, gulls, raptors and others. Dress warmly, bring a lunch and drinks. These areas may include Waterbird Preserve, TransMontaigne Pipeline, Mococo Marsh and Martinez Regional Shoreline. Rating: Category 1--Easy […]

Free

MDAS Field Trip—Thornton Area/Cosumnes Preserve

Westgate Landing Regional Park 4GF5+HP, Terminous, CA, United States

Thornton Area/Cosumnes Preserve Saturday, February 5, 8:45 AM-1 PM Leader: Ethan Chickering, 925-890-3833 The major portion of the birding is done along Woodbridge Road and the Isenberg Crane Reserve,  and at the Cosumnes River Preserve.  In winter these areas are thick with Sandhill Cranes, Snow, Greater White-fronted and Cackling Geese.  Also present will be many […]

Free