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MDAS Field Trip — Outer Point Reyes

Bear Valley Visitor Center 25RX+CV, Inverness, CA, United States

Outer Point Reyes Saturday, June 4, 8:30 AM to 3 PM Leaders:  Hugh Harvey and Beth Branthaver This is a trip to see some spring birds, and visit some of the migrant traps.  We will stop at the lighthouse overlook and spend some time above the fish docks.  Bring water and lunch. Rating: Category 1 -- […]

MDAS Field Trip — Yuba Pass (2-day outing)

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

Yuba Pass Saturday-Sunday, June 11-12, 7 AM Saturday to 1 PM Sunday Leaders: Hugh and Rosita Harvey 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 […]

13th Annual Martinez Beaver Festival

Susana Park Estudillo St. & Susana St., Martinez, CA

Come show your support for urban beavers and visit the Mt. Diablo Audubon Society booth and other favorite nature organizations at the 13th annual Martinez Beaver Festival.

MDAS Field Trip — Bodega Bay

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

Bodega Bay Saturday, August 20, 9 AM to 3 PM Leader:  Hugh Harvey, 925-935-2979 The last trip of our field trip calendar, but sometimes considered the first trip for fall birding.  At Bodega Bay are flocks of shorebirds including Black Oystercatcher, Wandering Tattler, Marbled Godwit, as well as tern, gulls, cormorants, near-shore pelagics and more.  […]

MDAS Field Trip — Jewel Lake

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

Jewel Lake, Tilden Nature Area, Berkeley Thursday September 1, 7:30am - 11:30am A short walk along Wildcat Creek and around Jewel Lake in Tilden Park. Possible highlights include fall warblers, Red-breasted and Pygmy Nuthatch, Pacific Wren, and maybe an early Varied Thrush. Hike Rating:  Category 1 - Easy Elevation change:  slight Leader:  Matt Tarlach, 925-482-6129 […]

Free

Monthly Program: September 2022

Lakeside Room of the Heather Farm Community Center at Heather Farm 301 N. San Carlos Drive, Walnut Creek, CA, United States

Birding Information: Eagle Scout Nest Box Projects Georgette Howington, Nest box monitor for the California Bluebird Recovery Program Georgette Howington will introduce several Eagle Scouts who completed Nest Box and other projects to help birds and wildlife in our community. Be inspired by their hard work and ingenuity! Main Program: A Gallop Through the Galapagos […]

Antioch Dunes National Wildlife Refuge

Antioch Dunes National Wildlife Refuge 2683+CH, Antioch, CA

Antioch Dunes National Wildlife Refuge--Docent-led public tour Saturday, September 10, 10 AM to 11 AM MDAS Coordinator:  Hugh Harvey Antioch Dunes is the only unit of the National Wildlife Refuge system in Contra Costa County.  It was set aside for two plants and a butterfly; Contra Costa Wallflower, Antioch Dunes Evening Primrose and Lang's Metalmark […]

MDAS Field Trip — Vaux’s Swifts at McNear Brickyard

McNear Brickyard 1 McNear Brickyard Rd., San Rafael, CA

Vaux's Swifts at McNear Brickyard Thursday, September 15, 5 PM to dark Leader: Hugh and Rosita Harvey, 925-935-2979 Every fall when Vaux's Swifts fly to Central and northern South America, they pass through the Bay Area and take advantage of chimneys for evening roosts.  Two well-known locations are in Healdsburg and San Rafael.  Due to […]

Free

MDAS Field Trip — Frank’s Dump

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

Hayward Regional Shoreline - Frank's Dump Saturday September 17, 2:30pm - 5:30pm We will meet at the very end of Winton Ave, walk out to the Bay Trail and head north. We should arrive at Frank’s Dump - a major high tide roost for shorebirds - when the tide has been coming in for about 4 […]

Free

MDAS Field Trip — Birding by Bike at Clifton Court Forebay

Clifton Court Forebay Clifton Court Rd., Discovery Bay, CA

Birding by Bike at Clifton Court Forebay Saturday September 24, 2022, 7:30am-1:30pm Have a bicycle, e-bike or scooter, and like to bird? Join MDAS at Clifton Court Reservoir in eastern Contra Costa County, where we will do an out-and-back biking/birding trip of approximately 10 miles on a flat, paved levee road to see a myriad of bird species. Those who are equipped for it […]

Free

MDAS Field Trip — Outer Point Reyes

Bear Valley Visitor Center 25RX+CV, Inverness, CA, United States

Outer Point Reyes, Marin coast Saturday October 1, 8:30am - 1pm The Outer Point Reyes area is a wonderful place to find fall migrants, many of them Eastern passerine vagrants. Warblers spotted here have included Blackburnian, Blackpoll, Chestnut-sided, Connecticut, Black-and-white, Magnolia, Prothonotary, Yellow-throated, and Black-throated Blue. We have seen Yellow-green, Red-eyed and White-eyed Vireos, Orchard […]

Free

MDAS Field Trip — Elsie Roemer Bird Sanctuary

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

Elsie Roemer Bird Sanctuary, Alameda Wednesday October 5, 9am - 1pm 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. Hike Rating:  Category 1 - Easy […]

Free

Monthly Program: October 2022

Zoom CA, United States

Birding Information: MDAS President Jerry Britten will present highlights of his summer Alaskan birding trip to the High Arctic Tundra and the Anchorage area. Main Program: Gardening for Birds with California Native Plants Eddie Bartley and Noreen Weeden You can have a beautiful native plant garden that attracts amazing birds, butterflies and other wildlife. Learn […]

MDAS/SMD Field Trip—Curry Canyon

Curry Canyon Ranch

Mount Diablo Audubon Society and Save Mount Diablo are partnering up for a hike on Save Mount Diablo's gorgeous Curry Canyon Ranch. This portion of Curry Canyon Ranch showcases beautiful rangeland ecosystems and valley oak and riparian habitat. We'll be looking for fall migrants, arriving wintering birds, and raptors. You might even see a golden […]

Free

MDAS Field Trip — Five Brooks & Bear Valley

Five Brooks Trailhead 8001 California 1, Bolinas, CA, United States

Five Brooks/Bear Valley, West Marin County Saturday October 15, 9:00am - 1pm This trip visits two inland areas near Point Reyes, environments of trees and meadows that are miles from the windswept dunes. Five Brooks is a reliable location for California Quail. All sorts of interesting birds show up around the pond at Five Brooks: […]

Free

Monthly Program: November 2022

Zoom CA, United States

Birding Information: Mt. Diablo Audubon Society is way ahead of a lot of other bird conservation groups. We help birds where they live year round, not just where we see them around Diablo. Many of California’s birds are migratory, and spend half the year south of the border. We financially support conservation groups in Latin America […]

MDAS Field Trip — Palo Alto Baylands/Charleston Slough

Terminal Boulevard Terminal Boulevard, Mountain View, CA, United States

Palo Alto Baylands/Charleston Slough Saturday November 5, 8:30am - 2pm 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. Hike Rating: Category 2 - Moderate. We do some walking, but drive from one location to the next. Elevation […]

Free

MDAS Field Trip — Shadow Cliffs Regional Park

Shadow Cliffs Regional Recreation Area 2500 Stanley Blvd, Pleasanton, CA, United States

Shadow Cliffs Regional Park Tuesday, November 15, 8:15am - Noon Expect to see a good variety of different birds. In years past Bald Eagles, Osprey, Herons, Kingfishers, various ducks; Owls, Hawks, Grackle and many smaller birds have all been seen here. Hike rating: 1 - Easy Elevation change: Minor Leader: Steve Taylor, 925-828-8810 Meet: at […]

MDAS Field Trip — MVSD – McNabney & Moorhen Marshes

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

MVSD - McNabney and Moorhen Marshes Tuesday, November 22, 9am - Noon 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. Hike Rating: 2 - Moderate. Almost entirely flat, but over half a mile of walking around the […]

Free

Monthly Program: December 2022

McHale Room of the Pleasant Hill Community Center 320 Civic Drive, Pleasant Hill, United States

Birding Information: The Race to Bring Northern White Rhinos Back from the Brink of Extinction Jill Hedgecock Northern white rhinos were deemed functionally extinct in March 2018 after the death of Sudan, the last male rhino. Currently, only two females remain on the planet. Jill Hedgecock will describe science’s innovative solution to hopefully save the […]