Conservation
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 […]
The Great Backyard Bird Count
OnlineThe Great Backyard Bird Count is coming! On February 12–15th, birders all over the world will count birds for four days to provide an important snapshot of where birds are right before their migrations. We may not be able to bird together on MDAS field trips, but we can still contribute to science meaningfully from […]
A Rainforest at our Feet: Local wetland restoration in the San Francisco Bay Area
OnlineIn this talk, acclaimed plant ecologist John Zentner will discuss how wetland health impacts the health of birds and wildlife. John will guide participants through understanding different types of local wetlands, from marshes, vernal pools, riparian wetlands, and more. He will then outline methods of wetland conservation and how these projects are crucial to maintaining […]
Mitchell Canyon Birding Hotspot—Spring Migration
OnlineSpring in the East Bay outdoors means enjoying comfortable weather, looking at beautiful wildflowers, and greeting the colorful migratory birds flying up from further south that either settle here to find mates and nest, or stop briefly before continuing up north. Mitchell Canyon, on the north slope of Mount Diablo and lying within Mount Diablo […]
Memorial Service for Jimm Edgar
First Presbyterian Church of Berkeley 2407 Dana St, Berkeley, CA, United StatesA memorial service for Jimm Edgar, who passed away on July 14, 2021, will be held on Monday, August 30, at 1 pm, at First Pres. Click here to RSVP. Click here to go to the livestream service. In-person attendance is limited to 150 people. Jimm Edgar, longtime MDAS leader, passed away peacefully on July 14th in Alabama […]
California Coastal Cleanup 2021
Participate in the CA Coastal Commission's Coastal Cleanup Day on September 18, and throughout the month! Due to COVID, organized cleanups won't be scheduled by our local Contra Costa Resource Conservation District, but they encourage you to do your own self-guided one. The District has resources to make this easier. See their cleanup page HERE. […]
MDAS Field Trip—Charleston Slough
Charleston Slough Mountain View, CA, United StatesWe 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, […]
WOW Presents: Mount Diablo State Park Centennial
OnlineRising almost 4,000 feet from the valleys of Contra Costa County, Mount Diablo is one of the most recognized geologic features of the San Francisco Bay Area. This year, Mount Diablo State Park is celebrating 100 years since being established in 1921. Join Wonders of the World (WOW) for a webinar that will explore the […]
MDAS Field Trip—Mt. View Sanitary/McNabney Marsh
Mountain View Sanitary District 3800 Arthur Rd, Martinez, CA, United StatesWe 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 […]
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 — Mt. View Sanitary and McNabney Marsh
Mountain View Sanitary District 3800 Arthur Rd, Martinez, CA, United StatesMt. View Sanitary and McNabney Marsh Tuesday March 8, 9 AM to Noon Leader: Randy Huey, 925-518-8439 Starting at the Mt. View Sanitation District Administration Building, we will spend most of our outing walking around the several large ponds making up Moorhen Marsh. Parking is free, and there are restrooms at the beginning of the […]
MDAS Field Trip — MVSD – McNabney & Moorhen Marshes
Mountain View Sanitary District 3800 Arthur Rd, Martinez, CA, United StatesMVSD - 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 […]
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 […]
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 […]
MDAS Field Trip — Mt. View Sanitary and McNabney Marsh
Mountain View Sanitary District 3800 Arthur Rd, Martinez, CA, United StatesMt. View Sanitary and McNabney Marsh Tuesday March 14, 9 AM to 1pm Starting at the Mt. View Sanitation District Administration Building, we will spend most of our outing walking around the several large ponds that make up Moorhen Marsh. Parking is free, and there are restrooms at the beginning of the walk. Winter birding […]
Pollinator and Friends Day at Ruth Bancroft Garden
Ruth Bancroft Garden 1552 Bancroft Road, Walnut Creek, CAJoin Mt. Diablo Audubon Society at Pollinator and Friends Day at Ruth Bancroft Garden! Each year the Ruth Bancroft Garden hosts Pollinator and Friends Day. Join us for a celebration of pollinator and friends and what we can do to protect them and their habitat. This drop-in event will feature other educational organizations, unique vendors […]
Lafayette Earth Day Festival
Join Mt. Diablo Audubon Society at Lafayette’s annual Earth Day Festival! Sustainable Lafayette presents this free event at Lafayette Plaza Park with live music, kids & family activities, and a petting zoo! For more information, visit: https://www.sustainablelafayette.org/2023-earth-day-festival
The Beaver Festival in Martinez
Join Mt. Diablo Audubon Society at The Beaver Festival in Martinez! The Beaver Festival is finally back! Show your support for urban beavers and join your friends and favorite nature organizations at the FOURTEENTH festival celebrating the Martinez Beavers. Beavers have become big news lately but this is the festival that started it all. Don’t […]
MDBA Field Trip — Mt. View Sanitary and McNabney Marsh
Mountain View Sanitary District 3800 Arthur Rd, Martinez, CA, United StatesWe'll begin by scanning McNabney Marsh from the viewing platform, then head over to Moorhen Marsh at Mt. View Sanitary District---one of the first water treatment facilities in the US to be developed as bird habitat. We expect to see a variety of waterbirds at these locations, from grebes and ducks to waders and peeps. […]