Observer: R H
Location: Ladera/Home San Mateo California
Observer: Rex Underfoot
Observer: Richard Jeffers
Observer: Naomi Goodman
Location: San Francisquito Creek bank San Mateo California
Observer: Cédric Duhalde
Location: Casa di Pazienti San Mateo California
Observer: Aaron Maizlish
Observer: Jesse Wentworth
Location: Edgewood Trail, Redwood City US-CA 37.46565, -122.29106 San Mateo California
Observer: Jane Orbuch
Observer: Connie Nelson
Observer: Justin Cottrell
Observer: Helen Gong
Location: Daly City Back San Mateo California
Observer: Sam Davis
Observer: Richard Hasegawa
Location: Don Edwards San Francisco Bay National Wildlife Refuge, Menlo Park US-CA (37.5031,-122.1228) San Mateo California
Observer: lee rudin
Observer: fiona benjamin
Observer: Alane Gray
Observer: Alvaro Jaramillo
Location: Garcia and Potter San Mateo California
Observer: Justin Cottrell
Observer: Alvaro Jaramillo
Location: Granelli - Half Moon Bay San Mateo California
Observer: lee rudin
Observer: Dudley Carlson
Location: 2 Coalmine View, Portola Valley US-CA 37.36616, -122.20803 San Mateo California
Observer: Helen Gong
Location: Daly City Back San Mateo California
Observer: lee rudin
Observer: R H
Location: Ladera/Home San Mateo California
Observer: R H
Location: Ladera/Home San Mateo California
Observer: Alvaro Jaramillo
Location: Granelli - Half Moon Bay San Mateo California
Observer: Justin Cottrell
Observer: Moses Michelsohn
Location: Daly City Station San Mateo California
Observer: Moses Michelsohn
Location: Colma Station San Mateo California
Observer: Moses Michelsohn
Observer: Lisa Barrow
Observer: Michael Long
Observer: Justin Cottrell
Observer: Biróg Levin
Location: 1147 San Carlos Avenue, San Carlos, California, US (37.507, -122.261) San Mateo California
Observer: R H
Location: Ladera/Home San Mateo California
Observer: Marshall Dinowitz
Observer: Jari Toivanen
Observer: Robert Ullman
Observer: R H
Location: Ladera/Home San Mateo California
Observer: M K
Location: 321 Waverley St, Menlo Park US-CA 37.45386, -122.17058 San Mateo California
Observer: Dudley Carlson
Location: US-CA-Portola Valley-2 Coal Mine Vw - 37.3662x-122.2077 San Mateo California
Observer: Sam Talarigo
Observer: Nico Stuurman
Observer: Carolyn Eidson
Location: 104 Hilton Way, Pacifica US-CA 37.63217, -122.49202 San Mateo California
Observer: Samuel Hain
Observer: Samuel Hain
Observer: Terri Williams
Observer: Richard Jeffers
Observer: Samuel Hain
Observer: James Armstrong
Observer: Malia DeFelice
Location: Casa Del Mar, Half Moon Bay San Mateo California
Observer: Chris Hayward
Location: Casa Del Mar, Half Moon Bay San Mateo California
Observer: Michael T Kiernan
Observer: Kent Forward
Observer: Michael T Kiernan
Observer: Rick Mustille
Location: 1292 Alvarado Ave, Pacifica US-CA 37.58424, -122.48519 San Mateo California
Observer: Justin Cottrell
Observer: Alane Gray
Observer: Laurie Graham
Location: Coyote Point Yacht Club, San Mateo US-CA (37.5861,-122.3159) San Mateo California
Observer: Justin Cottrell
Observer: Carol Miller
Observer: Richard Moss
Observer: Chris Hayward
Observer: Michael T Kiernan
Observer: Carol Miller
Observer: Shannon Duffy
Location: Unnamed Road, Half Moon Bay, California, US (37.528, -122.486) San Mateo California
Observer: Sam Talarigo
Location: Daly City—Gilman/Randall Intersection San Mateo California
Observer: Teresa Wood
Observer: fiona benjamin
Observer: Chris Hayward
Observer: Helen Gong
Location: Daly City Back San Mateo California
Observer: R H
Location: Ladera/Home San Mateo California
Observer: Justin Cottrell
Observer: Robbie Fischer
Location: Pacifica Yard List San Mateo California
Observer: Naomi Goodman
Location: San Francisquito Creek bank San Mateo California
Observer: Alvaro Jaramillo
Location: Granelli - Half Moon Bay San Mateo California
Observer: Karen Moody
Observer: Douglas Brown
Observer: Justin Cottrell
Observer: James Armstrong
Location: Belmont short walk: Davey Glen, Belmont, Anita, Malcolm, North San Mateo California
Observer: Peter Hart
Observer: Rosa McGuire
Observer: Alvaro Jaramillo
Observer: Justin Cottrell
Location: Airbnb San Mateo California
Observer: R H
Observer: R H
Location: Ladera/Home San Mateo California
Observer: Steve G
Location: Redwood life pond San Mateo California
Observer: Adam Rak
Observer: Fred Bertsch
Location: Casa de Pullman Ave San Mateo California
Observer: Cindy Bertsch
Location: Casa de Pullman Ave San Mateo California
Observer: David Jaffe
Observer: R H
Location: Ladera/Home San Mateo California
Observer: Adam Rak
Observer: Robert Ullman
Observer: Ramesh Naidu
Location: Sugarloaf San Mateo California
Observer: Robbie Fischer
Location: Pacifica Yard List San Mateo California
Observer: R H
Location: Ladera/Home San Mateo California
Observer: Alvaro Jaramillo
Observer: Ryan Mense