Related Links
|--Monarch Butterfly
|--Painted Lady
|--Western Tiger Swallowtail
|--Rancho San Antonio Butterflies

Two-tailed Swallowtail - Papilio multicaudata
Mount Diablo State Park

Red Admiral - Vanessa atalanta
Joaquin Miller Park

Gorgon Copper - Lycaena gorgon
Mount Diablo State Park

Golden Hairstreak - Habrodais grunus
Long Ridge Open Space Preserve

Butterfly Counts in San Francisco Bay Area and Northern/Central California

Annual butterfly counts are organized by the North American Butterfly Association (NABA). Count circles are 15 miles in diameter. Counts for the greater Bay area are listed below. Please contact the compiler for a particular count if you are interested in participating.

For information about Butterflies of the Bay area see the Butterflies page.

NABA (North American Butterfly Association) butterfly count information ...link
More information about Bay area butterflies ...more

Updated for 2024

Greater Bay Area

Location	Date	Compiler (Organizer)	Contact Info	Highlights
Pinnacles National Park	1 June	Paul Johnson	paul_johnson(at)nps.gov	45 species and 2,440 individuals in 2024. National Park information
Mount Diablo	tbd June	Rich Kelson	rkelson(at)sftp.com	38 species and 2,764 individuals in 2024. State Park information
Big Creek (Big Sur)	tbd June	Mark Readdie	readdie(at)ucsc.edu	Gorgeous UC Nature Reserve
Hastings Reservation	tbd June	Chris Tenney, Paul Johnson	tenneyx2(at)mac.com, pjpolliwog(at)yahoo.com	Unsilvered Fritillary, a nationally unique species. 42 species and 2,149 individuals in 2024. Hastings is part of the University of California Natural Reserve System.
Monterey	tbd June	Chris Tenney	tenneyx2(at)mac.com	54 species and 1,610 individuals in 2024
Berkeley	12 June	Paul Johnson	pjpolliwog(at)yahoo.com	Oldest California count; 43 species in 2024
Benicia	13 June	Paul Johnson	paul_johnson(at)nps.gov	Yuma Skipper and 5 swallowtail species found here
Marin County	tbd June	Wendy Dreskin	bdreskin(at)comcast.net	Area stretches from Audubon Canyon Ranch to Ring Mountain Preserve
San Francisco	15 June	Liam O'Brien	liammail56(at)yahoo.com	34 species in 2024
Point Reyes	19 July	tbd		Located on beautiful National Park lands

Farther afield in Northern and Central California

Location	Date	Compiler (Organizer)	Contact Info	Highlights
Big Chico Creek	7 June	Don Miller	DGMiller(at)csuchico.edu	38 species and 17,879 individuals in 2024. At a CSU Reserve
Cosumnes River Preserve	tbd June	Kathy Schick	kaschick(at)gmail.com	Located on a 50,000 acre nature preserve
San Joaquin County	tbd June	Kathy Schick	kaschick(at)gmail.com	45th year of this count
Warner Mountains North	21 June	Joseph Smith	foxglove1985(at)yahoo.com	85 species in 2018 (highest in nation); 20 national highs
Yuba Pass	2 July	Paul Johnson	pjpolliwog(at)yahoo.com	82 species and 2,411 individuals in 2024
Butterfly Valley	3 July	Chris Tenney	tenneyx2(at)mac.com	66 species and 3,078 individuals in 2024. Butterfly Valley Botanical Area information.
Mount Shasta	5 July	Erica Harris	ericaharris79(at)gmail.com	87 species and 2,833 individuals in 2024. Mount Shasta information
South Lake Tahoe	20 July	Will Richardson	will(at)tinsweb.org	Lake Tahoe information
Glass Mountain	tbd July	Paul McFarland	pmcfarland395(at)gmail.com	39 species and 628 individuals in 2024. Glass Mountain information.
Yosemite NP	28 July	Sarah Stock	Sarah_stock(at)nps.gov	75 species in 2023; 15 national highs. Yosemite National Park information.
White Mountains	tbd July	Paul Johnson	pjpolliwog(at)yahoo.com	White Mountains information.

Juba Skipper - Hesperia juba
Sonora Pass

Nelson's Hairstreak - Callophrys nelsoni
Lassen National Forest