Observer Roster

The Regional Observation Periods for 2023

March 3–5 (Friday–Sunday)

March 18–20 (Saturday–Monday)

Mar 31–Apr 2  (Friday–Sunday)

May 6–May 8  (Saturday–Monday)

June 2–4   (Friday–Sunday)

June 17–19 (Saturday–Monday)

For more information:

Emiko Condeso

Ecologist/GIS Specialist

Centro de Investigación Cypress Grove

[email protected]

List of Volunteer Site Coordinators and Observers

2023 Season
Last update: 3/13/23

The observer in bold is the Site Coordinator. Please check for your name and let Emiko know ASAP if you have concerns about your assignment. Note that only sites with volunteer observers are listed below.  For a complete picture of the sites we monitor, see the Map of the Heronries.

 Site Name (Site Number)
 County
 Observers
Alcatraz Island (70)San FranciscoLidia D’Amico, Aiko Goldston, Morgan Barnes (GBHE, GREG), Brianne Brussee (SNEG, BCNH)
Alexander Road (189)SonomaDavid Lumpkin
Bahama Reef Island (180)MarinBill Bridges, Lisa Cantor
Bel Marin Keys (128)MarinBill Bridges, Lisa Cantor
Bel Canyon Reservoir (3)NapaGreg Raynor (May visit only)
Benicia Bridge (177)Contra CostaJudith Dunham, Elizabeth Sojourner
Berryessa Pines (168)NapaJohn Ehrenfeld
Berryessa Resort (175) and other historical sitesNapaKris Hirschbeck
Bodega Bay Flat Road (5)MarinAnn Cassidy, Lauren Hammack (Emiko Condeso, late March only)
Campbell Ranch northwest (8), Campbell Ranch southeast (8.1)SolanoRobin Keister (May visit only)
Chalk Hill Road (9)SonomaConner Cimmiyotti
Chiles Creek north (63.1)NapaNancy Abreu
Cloverdale, River Road (11.2)SonomaPam Browning
Congress Valley (68.1), and Congress Valley old site (68)NapaEmiko Condeso, Camrie Mills, Kathleen Mugele, Iris Lombard, Mary Rooney
Cypress Road (160),  Cypress Road South (160.1)MarinBarbara Wechsberg, Ron Mallory, Suzie Graven, Nora Goodfriend-Koven
Delta Pond sites (90 and 90.1)SonomaCarolyn Greene, Erika Hoytt
DeSilva Island (15)MarinRon Brown, Sasha Vitomski
Dover Park (162)SolanoAmy Olgin, Josh Clemons, Ron Brown
Drakes Estero (94)MarinScott Jennings
Fitch Mountain North  (31.1)SonomaKaitlin Magoon, Kandice Strako
Freezeout Road (16)SonomaScott Jennings, Jacob Benning
Gold Hill (29)SolanoTom Slyker, Cheryl Reynolds, Amy Olgin
Hagen Road (30), Hagen Road West (184)NapaPenny Proteau, Wendy Cole
Keel Court (179)MarinLuanna Helfman, Anna-Marie Bratton
Lake Herman (154)SolanoWally Neville
Lake Nicasio (47), Lake Nicasio North (47.1), Lake Nicasio Pond (186)MarinAnn Linder, Bob Battagin
Lake Hennessey Inlet (190)NapaClaudia Zinn
Mare Island Sites
(73, 73.2, 73.3, 73.4, 73.5, 73.6, 73.7, 73.8, 135, 161)
SolanoWally Neville, Robin Leong
North Circle (182)MarinAnna Erway, Beverly Webster
Oddfellows (145)SonomaLucy Kenyon
Olive Hill Lane (183)NapaPenny Proteau, Wendy Cole
Pacheco Pond Island (185)MarinBill Bridges, Lisa Cantor
Paradise Cay (187)MarinSylvie Silverstein, Patti Blumin
Petaluma Wastewater Plant (40)SonomaLen Nelson, Linda Sheppard
Pope Valley 2 (89)NapaPhil Burton
Raccoon Straits (117), Raccoon Straits Ridge (117.1)MarinPatti Blumin, Sylvie Silverstein
Riverfront Park (110)SonomaKaitlin Magoon
Saint Vincent’s School (181)MarinStephanie Romano
Sand Point Sites (50, 50.1, 50.2, 50.3)MarinBeatrice Pezzolo, Tony Pezzolo
San Pablo Dam east (51), San Pablo Dam west and north (51.1)Contra CostaPhoebe Tanner, Julie Roemer, Lorna Cogen
Seminary (149)MarinRon Brown
Shuey Drive (176)Contra CostaJudith Dunham
South Kelly (129)NapaTom Slyker, Claudia Zinn
Tree Farm (137)MarinTom Baty
Via Palo Linda (107.1)SolanoJoanna Castaneda (Emiko Condeso, as needed)
Vigilante Road (57)SonomaDavid Lumpkin
West 9th Street, Santa Rosa (103)SonomaDavid Lumpkin
Wetmore Lane (188)SonomaMataan Peer
Willota Drive (146) and Willota Drive North (146.1)SolanoRobin Keister

Lo último en el rancho Audubon Canyon

Screen Shot 2023-09-21 at 5.12.45 PM
December 18, 2023 12:00 pm
a las 13:30
Tomales Bay
Screen Shot 2023-09-21 at 4.49.50 PM
December 4, 2023 01:00 pm
to 3:30 pm
Tomales Bay
Resilient Forest Series - September
September 24, 2023 10:30 am
to 3:30 pm
Green Valley Farm + Mill, Sebastopol