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.
- An interactive map of butterfly counts for USA
...link
- FAQs for the counts
...link
- More information about Bay area butterflies ...more
Updated for 2024
Greater Bay Area
| Location |
Date |
Compiler (Organizer) |
Contact Info |
Highlights |
| Pinnacles National Park |
2 June |
Paul Johnson |
paul_johnson(at)nps.gov |
40 species and 4 national high counts in 2020. National Park information. |
| Mount Diablo |
3 June |
Rich Kelson |
rkelson(at)sftp.com |
33 species and 5 national highs in 2020. State Park information. |
| Big Creek (Big Sur) |
7 June |
Mark Readdie |
readdie(at)ucsc.edu |
Gorgeous UC Nature Reserve |
| Hastings Reservation |
8 June |
Chris Tenney, Paul Johnson |
tenneyx2(at)mac.com, pjpolliwog(at)yahoo.com |
Unsilvered Fritillary, a nationally unique species. 43 species and 5 national highs in 2020. Hastings is part of the University of California Natural Reserve System. |
| Monterey |
9 June |
Chris Tenney |
tenneyx2(at)mac.com |
43 species and 3 national highs in 2020 |
| Berkeley |
13 June |
Paul Johnson |
pjpolliwog(at)yahoo.com |
Oldest California count; 33 species in 2020 |
| Benicia |
14 June |
Paul Johnson |
paul_johnson(at)nps.gov |
Yuma Skipper and 5 swallowtail species found here |
| Marin County |
15 June |
Wendy Dreskin |
bdreskin(at)comcast.net |
Area stretches from Audubon Canyon Ranch to Ring Mountain Preserve |
| San Francisco |
16 June |
Liam O'Brien |
liammail56(at)yahoo.com |
31 species and 2 national highs in 2020.
|
Farther afield in Northern and Central California
| Location |
Date |
Compiler (Organizer) |
Contact Info |
Highlights |
| Big Chico Creek |
1 June |
Don Miller |
DGMiller(at)csuchico.edu |
At a CSU Reserve |
| Cosumnes River Preserve |
15 June |
Kathy Schick |
kaschick(at)gmail.com |
At a Central Valley Nature Conservancy preserve |
| San Joaquin County |
16 June |
Kathy Schick |
kaschick(at)gmail.com |
44th year of this count |
| Warner Mountains North |
22 June |
Joseph Smith |
foxglove1985(at)yahoo.com |
85 species in 2018 (highest in nation); 20 national highs |
| Yuba Pass |
10 July |
Paul Johnson |
pjpolliwog(at)yahoo.com |
66 species and 7 national highs in 2020 |
| Butterfly Valley |
11 July |
Chris Tenney |
tenneyx2(at)mac.com |
54 species and 3 national highs in 2020. Butterfly Valley Botanical Area information. |
| Mount Shasta |
13 July |
Erica Harris |
ericaharris79(at)gmail.com |
1st year of this count! Mount Shasta information |
| South Lake Tahoe |
21 July |
Will Richardson |
will(at)tinsweb.org |
Lake Tahoe information |
| Glass Mountain |
27 July |
Paul McFarland |
pmcfarland395(at)gmail.com |
40 species and 9 national highs in 2020. Glass Mountain information. |
| Yosemite NP |
29 July |
Sarah Stock |
Sarah_stock(at)nps.gov |
75 species in 2019; 15 national highs. Yosemite National Park information. |
| White Mountains |
31 July |
Paul Johnson |
pjpolliwog(at)yahoo.com |
19 species and 6 national highs in 2020. White Mountains information. |
Juba Skipper - Hesperia juba
Sonora Pass
|
Nelson's Hairstreak - Callophrys nelsoni
Lassen National Forest
|
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