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  • White-breasted nuthatch at Heather Farms by Matt Tarlach

    MDBA Field Trip — Contra Costa City Parks

    Heather Farm Park 301 N San Carlos Dr, Walnut Creek, CA, United States

    This is a great outing for beginning birders! Starting in Heather Farm Park in Walnut Creek, we will walk around the large, mostly natural pond. From there we will carpool […]

  • MDBA Field Trip — Valle Vista

    Valle Vista RVC6+WQ, Moraga, CA, United States

    **NOTE THIS FIELD TRIP DATE HAS CHANGED FROM 2/16 TO 3/3 DUE TO WEATHER** A walk through various habitats at this EBMUD property usually allows us to see 40-50 species. […]

  • Monthly Program: March 2026

    Featured
    The Camellia Room at The Gardens at Heather Farm 1540 Marchbanks Drive, Walnut Creek, CA, United States

    In the Shadow of the Bridge: Birds of the Bay Area  Dick Evans and Hannah Hindley Mount Diablo Bird Alliance will meet Thursday, March 5 in the Camellia Room at […]

  • MDBA Field Trip — Winter Waterfowl in Walnut Creek

    Heather Farm Park 301 N San Carlos Dr, Walnut Creek, CA, United States

    A short-and-easy bird walk with the Mt. Diablo Bird Alliance. Non-members are welcome, with pre-registration. This is a great outing for beginning birders! Heather Farms is a small pocket of […]

    Free

  • MDBA Field Trip — Contra Loma Regional Park

    Contra Loma Reservoir 1200 Frederickson Ln, Antioch, CA, United States

    We will be birding the reservoir, Loma Island and surrounding grassland areas. Expected species include waterfowl, woodland, riparian/marsh, shore and grassland birds. Dress appropriately, bring lunch and drinks. Hike Rating: […]

  • MDBA Field Trip — Birding Moorhen Marsh

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

    An outing for birders of all experience levels, and especially good for beginners. Moorhen Marsh in Martinez was one of the first water treatment facilities in the US designed to […]

    Free

  • MDBA Field Trip — Birding Moorhen Marsh

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

    An outing for birders of all experience levels, and especially good for beginners. Moorhen Marsh in Martinez was one of the first water treatment facilities in the US designed to […]

    Free

  • MDBA Field Trip — North Briones

    Briones Regional Park (North) XV37+VX, Martinez, CA, United States

    This walk begins in oak woodlands with lots of spring wildflowers and birds. We then continue up through grasslands, ending at Sindicich Lagoons. We return the way we came, hiking […]

    Free

  • MDBA Field Trip — Mitchell Canyon

    Mitchell Canyon 96 Mitchell Canyon Road, Clayton, CA, United States

    We will walk into Mitchell Canyon on the lower slopes of Mount Diablo State Park. Many spring birds are possible here: warblers, hummingbirds, flycatchers, gnatcatchers and more. Spring flowers will […]

    $6

  • MDBA Field Trip — Black Diamond Mines

    Black Diamond Mines Regional Preserve X45P+PP, Antioch, CA, United States

    This trip includes a vigorous climb up a steep trail, with an elevation gain of several hundred feet. Why make the climb? Because the location offers the best chance in […]

  • MDBA Field Trip — Del Puerto Canyon

    Del Puerto Canyon Rd & Diablo Grande Pkwy Del Puerto Canyon Rd, Patterson, CA, United States

    We'll drive along Del Puerto Canyon, on the east side of the Diablo Range, looking for Canyon Wren, Costa’ s Hummingbird, Greater Roadrunner, and other special birds. It can get […]

  • MDBA Field Trip — Lagoon Valley & Pena Adobe

    Peña Adobe Regional Park 4699 Peña Adobe Rd., Vacaville, CA

    We will first bird at Pena Adobe Park, located off I-80 just west of Vacaville. Pena Adobe is a historic park with well established trees, including an orange tree planted […]

    $5

  • MDBA Field Trip — Brannan Island & Delta Rookery

    Brannan Island State Recreation Area 17645 CA-160, Rio Vista, CA

    We'll start at the entrance to Brannan Island SRA, in the parking lot east side of Hwy 160. Pay the entrance fee at the station or by envelope if no […]

    $10

  • MDBA Field Trip — West Briones Regional Park

    Bear Creek Staging Area Briones Bear Creek Staging Area, 16 Bear Creek Rd, Lafayette, CA, United States

    A visit to the west entrance of Briones Regional Park in the spring offers views of spring wildflowers and spring birds. Lazuli Buntings are often present, along with flycatchers, vireos, […]

  • MDBA Field Trip — East Contra Costa County

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

    Note: this itinerary is subject to change, as migrating birds arrive and opportunities appear. Watch the May Quail, and your email in the days before the outing, for possible updates. […]