Events
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MDBA Field Trip — Pacheco Marsh
Pacheco Marsh 2501 Waterfront Rd, Martinez, CAPacheco Marsh is a wetland along the Carquinez Strait, east of Martinez, that has been restored by the John Muir Land Trust and recently opened to the public. JMLT is giving us early access, at 8 AM, to facilitate the best birding. We'll meet at the parking lot, where there are rest rooms, and walk […]
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MDBA Field Trip — East County Specialties at Los Vaqueros
Los Vaqueros Reservoir 121 Walnut Blvd, Brentwood, CALos Vaqueros Reservoir is a relatively remote area overseen by the Contra Costa Water District. The open savannah surrounding the reservoir is one of the best places to observe grassland species such as American Kestrels, Meadowlarks, Horned Larks, and Prairie Falcons. Rarities like Mountain Bluebird, Lewis’ Woodpeckers, and Burrowing Owl occasionally show up there as […]
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MDBA Field Trip — Sacramento/Colusa National Wildlife Refuges
Sacramento/Colusa National Wildlife Refuges Dunnigan Northbound Rest Area I-5 North of Dunnigan, Dunnigan, United StatesSacramento and Colusa National Wildlife Refuges are premier locations to see massive flocks of Snow and White-fronted Geese and tons of other waterfowl, raptors and other birds. They are must-see annual winter destinations. We will drive the auto tour routes and stop at the viewing platforms at both of these refuges, and visit a couple […]
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MDBA Field Trip — Staten Island Road
Staten Island Road 24700 N Staten Island Rd, Thornton, CADecember is prime time for seeing lots of Sandhill Cranes along Staten Island Road in the Sacramento River Delta. Snow and White-fronted Geese and lots of other waterfowl are also assured. This trip is timed to spend a couple of hours viewing the grazing birds before a hoped for sunset flight of the whole flock […]
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Monthly Program: December 2025
FeaturedThe Camellia Room at The Gardens at Heather Farm 1540 Marchbanks Drive, Walnut Creek, CA, United StatesSo Many Ways To Be a Bird Constance Anderson Mount Diablo Bird Alliance will meet Thursday, December 11 in the Camellia Room at the Gardens at Heather Farm, 1540 Marchbanks Drive, Walnut Creek, CA 94598. 6:30 PM Doors Open 7:00 PM Announcements 7:15 PM Refreshments and Raffle 7:30 PM Main Program: So Many Ways To […]
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MDBA Field Trip — Lake Merritt and Arrowhead Marsh
Lake Merritt 699 Bellevue Ave, Oakland, CA, United StatesWinter ducks on Lake Merritt and other birds are usually easy to see from the sidewalk. The lake is one of the few places in the Bay Area where Barrow's Goldeneyes can sometimes be seen. An entry fee past the gate at Children's Fairyland is usually required. We will move to Arrowhead Marsh before 10:00AM, […]
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MDBA Field Trip — Putah Creek
Putah Creek Road 3836 Putah Creek Rd, Winters, CA, United StatesThis is a great chance to see a variety of birds and ducks along Putah Creek and Lake Solano. Possible species 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 day of the trip. Rain cancels. Hike rating: […]
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Monthly Program: January 2026
FeaturedThe Camellia Room at The Gardens at Heather Farm 1540 Marchbanks Drive, Walnut Creek, CA, United StatesBornean Bristlehead. Photo by Bob Lewis. The Importance of Islands to Avian Evolution Bob Lewis Mount Diablo Bird Alliance will meet Thursday, January 8 in the Camellia Room at the Gardens at Heather Farm, 1540 Marchbanks Drive, Walnut Creek, CA 94598. 6:30 PM Doors Open 7:00 PM Announcements 7:15 PM Refreshments and Raffle 7:30 PM […]
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MDBA Field Trip — Bridgeway Island Pond, West Sacramento
McDonald's West Sacramento 2244 Lake Washington Blvd., West Sacramento, CABridgeway Island Pond in West Sacramento is a low-key birding hotspot, offering fairly close views of an assortment of waterfowl and shorebirds. In past years it's been a great spot for Blue-winged Teal, as well as American Avocet, Cinnamon Teal, and Sora. Easy access with a mostly flat, grassy area. Not much walking will be […]
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MDBA Field Trip — Woodbridge Road & Sandhill Crane Fly-In
Woodbridge Ecological Reserve 7730 W Woodbridge Rd, Lodi, CAThis outing is especially suitable for people with mobility issues. A very special trip arranged with the California Department of Fish and Wildlife. At 3:45 PM we'll meet their volunteer docents at the South Unit of the Woodbridge Ecological Reserve, near Lodi, where they will introduce us to the many waterfowl and shorebirds that winter […]
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Monthly Program: February 2026
FeaturedThe Camellia Room at The Gardens at Heather Farm 1540 Marchbanks Drive, Walnut Creek, CA, United StatesBrandt's Cormorant, Photo by Farallon Institute. Alcatraz Island – A Climate Refuge for Seabirds Julie Thayer Mount Diablo Bird Alliance will meet Thursday, February 5 in the Camellia Room at the Gardens at Heather Farm, 1540 Marchbanks Drive, Walnut Creek, CA 94598. 6:30 PM Doors Open 7:00 PM Announcements 7:15 PM Refreshments and Raffle 7:30 PM […]
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MDBA Field Trip — Bodega Bay
Tides Restaurant Bodega Bay 835Bay Highway, Bodega Bay, CA, United StatesWhy do we go all the way to Bodega Bay? To see loons close up – the Common, Pacific, and Red-throated species are all possible. To see Brant, the sea geese that spend the winter here. To see Double-crested, Brandt’s and Pelagic cormorants side-by-side, to strengthen our ID skills. This is a great place for […]
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MDBA Field Trip — The Delta including Cosumnes Preserve
Westgate Landing Regional Park 4GF5+HP, Terminous, CA, United StatesWe'll take a few short-to-medium walks at locations in the Delta, hoping to see Tundra Swans, Sandhill Cranes, raptors and grassland birds. A highlight is Cosumnes Preserve. Trip will go in light rain. Bring lunch and a beverage. Leader: Mona Lange Hike rating: 1 - Easy. Elevation change: Minor Meet: 8:45 AM in Westgate Landing […]
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MDBA Field Trip — Sunset Birding at Pacheco Marsh
Pacheco Marsh 2501 Waterfront Rd, Martinez, CAPacheco Marsh is a diverse new habitat managed by the John Muir Land Trust. Hosting many species, it is especially known as a good place to spot Short-eared Owls near sunset. We will walk out along level paths in search of marshland birds, including ducks and rails, and hope to see owls in flight as […]
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MDBA Field Trip — Sunday at the Sewage Ponds (Las Gallinas)
Las Gallinas Ponds Las Gallinas Valley birding loop, Smith Ranch Rd, San Rafael, CAThe Las Gallinas Sanitary District maintains a complex of water treatment ponds that are a magnet for migratory waterfowl. Dozens of waterfowl species can be seen here in the winter. The presence of similar species in close proximity, such as Canada Geese and Cackling Geese, Horned Grebes and Eared Grebes, and Snowy Egrets and Great […]
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MDBA Field Trip — Contra Costa City Parks
Heather Farm Park 301 N San Carlos Dr, Walnut Creek, CA, United StatesThis 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 to two or three other area parks, to be determined on the day of the trip. Trail Rating: Category 1-Easy. Up to a mile walking […]
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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. Bring your EBMUD trail pass, if you have one. This property is at the upstream end of the Upper San Leandro Reservoir. If it has […]
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Monthly Program: March 2026
FeaturedThe Camellia Room at The Gardens at Heather Farm 1540 Marchbanks Drive, Walnut Creek, CA, United StatesIn 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 the Gardens at Heather Farm, 1540 Marchbanks Drive, Walnut Creek, CA 94598. 6:30 PM Doors Open 7:00 PM Announcements 7:15 PM Refreshments and Raffle 7:30 PM […]
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MDBA Field Trip — Winter Waterfowl in Walnut Creek
Heather Farm Park 301 N San Carlos Dr, Walnut Creek, CA, United StatesA 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 wildlife habitat in suburban Walnut Creek. It provides a nice mix of riparian, oak woodland, and wetland habitat that attract many winter visitors such as […]
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MDBA Field Trip — Contra Loma Regional Park
Contra Loma Reservoir 1200 Frederickson Ln, Antioch, CA, United StatesWe 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: 2, Moderate. We usually walk just over a mile. Elevation change is minimal, with optional excursions of up to 200 yards over turf. Elevation change: […]