About Us


Mt. Diablo Audubon Society is committed to the sustainable balance of our community’s people, birds, other wildlife, and habitat through conservation, education, and advocacy.


  • Ensure a high degree of habitat diversity and preservation through an active role in local environmental activities and issues.
  • Observe, collect, and report information concerning the status of birds, other wildlife, and habitat.
  • Support community organizations with similar goals.
  • Sponsor educational activities to promote environmental knowledge with a special focus on youth.
  • Enhance public appreciation of the natural world with an emphasis on birds.


Board of Directors

Click on names below to email.

President Jerry Britten
Vice-President Ariana RIckard
Secretary Carol Pachl
Treasurer Steve Buffi
Conservation Juan Pablo Galván
Education Krista Vossekuil
Field Trips Hugh Harvey
Membership Bill Chilson
Program Coordinator Ariana Rickard
Publicity and Social Media Rosalie Howarth
The Quail Editor Position Vacant
Sales Manager Position Vacant
Young Birders Club Juan Pablo Galván
Board Member-at-Large Alan Bade
Board Member-at-Large Mike Eliot
Board Member-at-Large Rosemary Nishikawa


Advisory Positions

Christmas Bird Count (CBC) Jerry Britten
Community Science Alan Bade
East Bay Birding Email Groups Jerry Britten
Hospitality Kathy Kellogg
Outreach Coordinator Position Vacant
Web Editor Alyssa Retodo

Board Meetings

MDAS Board Meetings are held the 2nd Thursday of every month, at 6:45 PM via web-meeting. Members are welcome to sit in. Please contact a Board member to obtain meeting credentials.


Volunteer Openings

MDAS has the following positions available for anyone with an interest in supporting our mission of Connecting People with Birds.

Membership Chair is responsible maintaining membership levels in the Chapter.  This is an MDAS Board position.

Duties include maintaining and updating the membership database, welcoming new members, and notifying existing members of expiring memberships.

The Quail Editor is responsible for the publication of the monthly chapter email newsletter. This is an MDAS Board position.

Duties include setting up content schedules, reaching out to persons inside and outside of the chapter for content, familiarity with Mailchimp or other online newsletter platforms, familiarity with basic HTML, and working with the MDAS Membership Chair to maintain the list of subscribers. MDAS publishes nine issues of The Quail newsletter each year. Training on Mailchimp will be provided.

Outreach Coordinator is responsible for coordinating volunteers to staff MDAS booths and tables, etc at local festivals and other public events at which MDAS has a presence. This is an MDAS Board position.

Sales Manager handles sales and inventory of publications and merchandise, conducts raffles and silent auctions at membership meetings, and maintains financial records of sales. This is an MDAS Board position.

If you or someone you know is interested in any of these positions, please send an email to MDAS President Jerry Britten at .


Contact Us

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Upcoming Events

Feb 05

MDAS Field Trip—Thornton Area/Cosumnes Preserve

FEBRUARY 5 @ 8:45 AM - 1:00 PM

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 […]

Feb 12

MDAS Field Trip—Bodega Bay

FEBRUARY 12 @ 9:15 AM - 2:00 PM

Bodega Bay Saturday, February 12, 9:15 AM-2 PM Leader: Hugh Harvey, 925-935-2979 Many opportunities for spotting great birds are available on this trip.  Wintering shorebirds and waterfowl sometimes number in the 1000s.  We will not be attacked by any of The Birds in Hitchcock’s famous movie.  After meeting at The Tides Restaurant, we will stop […]

Feb 23

MDAS Field Trip—Walnut Creek City Parks

FEBRUARY 23 @ 8:30 AM - 1:00 PM

Walnut Creek City Parks Wednesday, February 23, 8:30 AM-1 PM Leader: Hugh Harvey, 925-935-2979 Starting in Heather Farm Park, we will walk around the large, mostly natural pond, birding along the way.  We will visit one or two other parks within the city, to be determined the day of the trip. Rating: Category 2-Moderate Elevation change: N/A […]

Feb 26

MDAS Field Trip—Los Banos/Panoche Valley

FEBRUARY 26 @ 8:00 AM - FEBRUARY 27 @ 3:00 PM

Los Banos/Panoche Valley Saturday/Sunday, February 26-27, two full days Leaders:  Beth Branthaver and Hugh Harvey On Saturday this trip takes us through marshy areas of the Central Valley, where we should see large numbers of waterfowl, raptors and waders.  Sunday will be a visit to the Panoche Valley, which may have more raptors and other […]