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Ask the Naturalist: Why Are Sea Hares Multiplying In Lake Merritt?

May 26, 2015 by Bay Nature Staff

Nearly 100 giant sea slugs have been spotted in Oakland's Lake Merritt -- and they're breeding! But why? We asked Cal Academy's Terry Gosliner about this sudden influx.

9 Comments

Ask the Naturalist: Do pelicans carry their babies in their pouches?

January 09, 2015 by Bay Nature Staff

A first-grade teacher asks: Do pelicans ever carry their young in their pouches? We asked International Bird Rescue for the answer.

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Javier Ochoa Reyes, Groundwork Richmond

January 01, 2015 by Bay Nature Staff

Every year, Bay Nature Institute selects three people whose extraordinary work on behalf of conservation and environmental education in the ...

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Julia Clothier, Point Reyes National Seashore Association

January 01, 2015 by Bay Nature Staff

Every year, Bay Nature Institute selects three people whose extraordinary work on behalf of conservation and environmental education in the ...

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Ralph Benson, Sonoma Land Trust

January 01, 2015 by Bay Nature Staff

Every year, Bay Nature Institute selects three people whose extraordinary work on behalf of conservation and environmental education in the ...

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Meet Bay Nature’s 2015 Local Heroes

November 18, 2014 by Bay Nature Staff

Bay Nature Institute announces the three recipients of its 2015 "Local Hero" Awards.

3 Comments

Ask the Naturalist: Should I Be Afraid Of This Spider?

November 07, 2014 by Bay Nature Staff

Q: I've heard of a very large and scary-looking spider that can be found in the Santa Cruz mountains. Should I fear it if I encounter it in the wild?

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Ask the Naturalist: Young Bald Eagle at Palo Alto Baylands?

October 27, 2014 by Bay Nature Staff

A possible young bald eagle sighting intrigues a South Bay park visitor.

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Ask the Naturalist: What’s That Poking Out of the Ground?

October 17, 2014 by Bay Nature Staff

A recent visitor to Los Gatos' Vasona Park was startled by the appearance of a "mystery rodent".

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Ask the Naturalist: Shady Bay Area Hikes?

September 19, 2014 by Bay Nature Staff

Where to find some shady hikes in our state parks on sunny fall days? Guest naturalist - and BN publisher David Loeb - had some suggestions.

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Cowell Ranch Beach

August 13, 2014 by Bay Nature Staff

This summer, rather than braving the crowds at Fitzgerald Marine Reserve, consider visiting the secluded, little-known refuge of Cowell Ranch ...

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Tarwater Trail Loop, Pescadero Creek County Park

August 13, 2014 by Bay Nature Staff

This is not your average county park: It sprawls over 8,020 acres, encompassing the Pescadero Creek watershed, a major steelhead ...

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Lands End Loop

August 13, 2014 by Bay Nature Staff

A morning outing to Lands End provides about as much wilderness as can be found in San Francisco; the beauty ...

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Zinfandel Trail

August 13, 2014 by Bay Nature Staff

Hike by Rob Lehman, originally published in the October 2009 issue of Bay Nature magazine The historic Picchetti Winery is ...

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Lake Merced Rim Trail

August 13, 2014 by Bay Nature Staff

Hike by Lou Sian, originally published in the October 2007 issue of Bay Nature magazine For many birds, Lake Merced ...

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Brooks Falls Loop Trail

August 13, 2014 by Bay Nature Staff

Hike by Dave Carroll, originally published in the January 2008 issue of Bay Nature magazine Spanish explorer Gaspar de Portola ...

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Coyote Peak Loop

August 13, 2014 by Bay Nature Staff

Hike by Janet Binaksi, originally published in the April 2007 issue of Bay Nature Magazine Ten miles south of downtown ...

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San Bruno Mountain Saddle Loop

August 13, 2014 by Bay Nature Staff

Hike by Kate Brittain, originally published in the April 2008 issue of Bay Nature magazine You can't miss San Bruno ...

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Huckleberry Loop

August 13, 2014 by Bay Nature Staff

In the Oakland hills' 241-acre Huckleberry Preserve, uplifted rock strata formed in the deep ocean nurture a relict plant community ...

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Monte Bello Super Spring Loop

August 13, 2014 by Bay Nature Staff

Hike by Sarah Schoen, originally published in the April 2011 issue of Bay Nature magazine After waiting all winter, you ...

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EAST BAY: Mount Diablo Fairy Lantern

June 13, 2014 by Bay Nature Staff

Spotted and photographed in the Morgan Fire burn area at Viera-North Peak, by David Ogden, May 6. ...

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EAST BAY: Calochortus venustus

June 09, 2014 by Bay Nature Staff

Spotted and photographed by David Ogden in Perkins Canyon, Mount Diablo, May 14. ...

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EAST BAY: Triteleia laxa

June 03, 2014 by Bay Nature Staff

Spotted and photographed on the Sinawik Trail, Joaquin Miller Park, by Andrew Aldrich, June 1. ...

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Welcome!

May 23, 2014 by Bay Nature Staff

Thanks for visiting Bay Nature’s Mount Diablo fire recovery page. Follow us on social media for updates, and please email ...

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Watch the Recovery Live

May 23, 2014 by Bay Nature Staff

Nerds for Nature has installed posts at several spots in the fire area, where you can take pictures and give ...

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EAST BAY: Wind poppy

May 19, 2014 by Bay Nature Staff

Spotted and photographed on Mount Diablo’s Mary Bowerman Trail by Jane Huber, May 18. ...

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EAST BAY: Bitter root

May 19, 2014 by Bay Nature Staff

Spotted and photographed on Mount Diablo’s Mary Bowerman Trail by Jane Huber, May 18. ...

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EAST BAY: Triteleia laxa

May 15, 2014 by Bay Nature Staff

Spotted and photographed by David Loeb in Perkins Canyon, Mount Diablo, May 11. ...

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It’s Not Just the Fire-Followers

May 15, 2014 by Bay Nature Staff

Bay Nature Publisher David Loeb visited Perkins Canyon over the weekend and found it awash in flowers! ...

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Chronicle Features Fire Following Flowers

May 14, 2014 by Bay Nature Staff

The San Francisco Chronicle’s Kevin Fagan has a big story today about fire-following flowers on Mount Diablo, and the work ...

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EAST BAY: Delphinium californicum ssp. interius

May 14, 2014 by Bay Nature Staff

Spotted and photographed by David Ogden at Mangini Ranch, Concord, May 8. ...

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Quick Guide to Fire Following Flowers

May 12, 2014 by Bay Nature Staff

Need help identifying sprouting plants in the field? iNaturalist’s Ken-ichi Ueda made this quick guide to fire-following flowers on Mount ...

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EAST BAY: Calochortus venustus

May 12, 2014 by Bay Nature Staff

Spotted and photographed by David Loeb in Perkins Canyon, Mount Diablo, May 11. ...

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Flowers Everywhere!

May 09, 2014 by Bay Nature Staff

In a Facebook post today, Save Mount Diablo writes that this is the best wildflower season many of them have ...

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PENINSULA: Poppies

May 01, 2014 by Bay Nature Staff

Spotted and photographed on Milagra Ridge by Jennifer Schurk, April 30. ...

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SAN FRANCISCO: Red maids

April 29, 2014 by Bay Nature Staff

Spotted and photographed near El Polin Springs in the Presidio by Elizabeth Creely, April 27. ...

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Why Bay Nature?

April 22, 2014 by Bay Nature Staff

Publisher David Loeb had his Bay Nature epiphany while hiking in China Camp State Park. That’s when he conceived of ...

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EAST BAY: Owl’s clover

April 21, 2014 by Bay Nature Staff

Spotted and photographed on the North Peak Trail, Mount Diablo State Park, by David Loeb, April 20. ...

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NORTH BAY: Checkerbloom

April 21, 2014 by Bay Nature Staff

Spotted and photographed on Ring Mountain, Corte Madera, by David Loeb, April 19. ...

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EAST BAY: Mt. Diablo wallflower

April 21, 2014 by Bay Nature Staff

Spotted and photographed by David Loeb, North Peak Trail, Mount Diablo State Park, April 20. ...

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EAST BAY: Blow-wives

April 21, 2014 by Bay Nature Staff

Spotted and photographed on the Maguire Peaks Loop, Sunol Regional Wilderness, by Harold Poskanzer, April 20. ...

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PENINSULA: Wight’s Paintbrush

April 16, 2014 by Bay Nature Staff

Spotted and photographed on San Bruno Mountain by Lech Naumovich, April 15. ...

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BUTTE COUNTY: Frying pan poppies

April 14, 2014 by Bay Nature Staff

Spotted and photographed on North Table Mountain Ecological Reserve (north of Oroville), by Carolyn Straub, March 15. ...

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EAST BAY: California poppies

April 11, 2014 by Bay Nature Staff

Seen and photographed on the North Peak Trail between Prospector’s Gap and Mount Diablo, Mount Diablo State Park, by Harold ...

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EAST BAY: Lupin

April 11, 2014 by Bay Nature Staff

Spotted and photographed on the Mount Olympia trail, Mount Diablo State Park, by Harold Poskanzer, April 5. ...

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EAST BAY: Goldfield

April 04, 2014 by Bay Nature Staff

Spotted and photographed on the Canyon View Trail, Sunol Regional Wilderness, by Ayesha Ercelawn, March 30. ...

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EAST BAY: Gilia tricolor

April 04, 2014 by Bay Nature Staff

Spotted and photographed on the Canyon View Trail, Sunol Regional Wilderness, by Ayesha Ercelawn, March 30. ...

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PENINSULA: Checkermallow

April 04, 2014 by Bay Nature Staff

Spotted and photographed on San Bruno Mountain by Elizabeth Creely, March 30. ...

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PENINSULA: Phacelia californica

April 04, 2014 by Bay Nature Staff

Spotted and photographed on San Bruno Mountain by Elizabeth Creely, March 30. ...

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EAST BAY: Delphinium

March 30, 2014 by Bay Nature Staff

Spotted and photographed on the Canyon View Trail in the Sunol Regional Wilderness by Ameet Zaveri, March 23. ...

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PENINSULA: Yellow viola

March 30, 2014 by Bay Nature Staff

Spotted and photographed on San Bruno Mountain by Elizabeth Creely, March 30. ...

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SAN FRANCISCO: Tidy tips and goldfields

March 28, 2014 by Bay Nature Staff

Seen and photographed by Jane Huber below Inspiration Point in the Presidio, March 26. ...

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SAN FRANCISCO: Douglas iris

March 28, 2014 by Bay Nature Staff

Spotted and photographed on the Coastal Trail in the Presidio by Eric Simons, March 28. ...

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SAN FRANCISCO: Erigeron

March 28, 2014 by Bay Nature Staff

Spotted and photographed on the Coastal Trail near Battery West, Presidio, by Eric Simons, March 28. ...

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Bay Nature’s Annual Local Hero Awards Dinner 2014 – Photos!

March 28, 2014 by Bay Nature Staff

Bay Nature’s 2014 Local Hero Awards dinner, held on Sunday, March 23 at Scott’s Seafood on Jack London Square, honored ...

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PENINSULA: Muilla

March 28, 2014 by Bay Nature Staff

Seen and photographed by Judith Bush on the Serpentine Loop Trail in Edgewood Park in Redwood City, March 23. ...

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PENINSULA: Purple sanicle

March 28, 2014 by Bay Nature Staff

Seen and photographed by Judith Bush on the Serpentine Loop Trail in Edgewood Park in Redwood City, March 23. ...

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PENINSULA: Star lily

March 27, 2014 by Bay Nature Staff

Seen and photographed by Judith Bush on the Serpentine Loop Trail in Edgewood Park in Redwood City, March 23. ...

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PENINSULA: Blue dick

March 27, 2014 by Bay Nature Staff

Seen and photographed by Judith Bush on the Serpentine Loop Trail in Edgewood Park in Redwood City, March 23. ...

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PENINSULA: Shooting star

March 27, 2014 by Bay Nature Staff

Seen and photographed by Judith Bush on the Serpentine Loop Trail in Edgewood Park in Redwood City, March 23.   ...

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EAST BAY: Mustard

March 15, 2014 by Bay Nature Staff

Seen and photographed in Brentwood by Robin Mayoff (RHMImages), March 15. ...

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EAST BAY: Baby blue eyes

March 15, 2014 by Bay Nature Staff

Seen and photographed by David Loeb on the North Peak Trail, Mount Diablo near Devil’s Pulpit, March 15. ...

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EAST BAY: Scarlet Delphinium

March 15, 2014 by Bay Nature Staff

Seen and photographed by David Loeb on the North Peak Trail, Mount Diablo near Devil’s Pulpit, March 15. ...

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Bay Nature Annual Awards Dinner 2014: Silent Auction Preview

March 01, 2014 by Bay Nature Staff

We’re delighted to be able to offer some wonderful wilderness getaways — plus mouthwatering wine, art, music, and gardening packages ...

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Sierra Club leader to speak at Bay Nature’s Annual Awards Dinner

February 27, 2014 by Bay Nature Staff

On Sunday March 23rd, Sierra Club Executive Director Michael Brune will speak at Bay Nature’s Annual Awards Dinner on the ...

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Annual Awards Dinner 2014: Silent Auction Preview!

February 19, 2014 by Bay Nature Staff

A Yosemite getaway and a Central Valley birding tour with Bay Nature naturalist Michael Ellis are highlights of our silent ...

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2014 Local Hero Award Winner for Youth Engagement

January 02, 2014 by Bay Nature Staff

Cheyanna Washburn, a sophomore at Diablo Valley College in botany and recreational therapy, is one of those dedicated young leaders ...

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2014 Local Hero Award Winner for Environmental Education

January 02, 2014 by Bay Nature Staff

>> Liam was recently interviewed on KQED-FM’s Forum about his life in lepidoptery (2/7/14). LISTEN A trained stage actor (who ...

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2014 Local Hero Award Winner for Conservation Action

January 02, 2014 by Bay Nature Staff

Craig Anderson is the inspirational Executive Director of LandPaths, a Santa Rosa-based nonprofit dedicated to connecting people to the natural ...

1 Comment

Ask the Naturalist, August 2013

August 29, 2013 by Bay Nature Staff

This week we welcome Santa Clara Valley Audubon’s Bob Power as our Guest Naturalist! Dear Bay Nature, What is the ...

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Remembering Rich Stallcup

April 01, 2013 by Bay Nature Staff

In December 2012, the Bay Area, and the world, lost one of its most eloquent spokespeople for and about birds. ...

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Bay Nature Honors Three Local Heroes

December 17, 2012 by Bay Nature Staff

FOR IMMEDIATE RELEASE Berkeley, CA (December 17, 2012) — A beloved ranger/naturalist at Muir Woods, a dynamic advocate for open ...

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2013 Local Hero Award for Environmental Education

December 13, 2012 by Bay Nature Staff

Each year, the nonprofit Bay Nature Institute, based in Berkeley, selects three individuals who are making outstanding contributions to the ...

7 Comments

2013 Local Hero Award for Conservation Action

December 13, 2012 by Bay Nature Staff

Each year, the nonprofit Bay Nature Institute, based in Berkeley, selects three individuals who are making outstanding contributions to the ...

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2013 Local Hero Award for Youth Engagement

December 13, 2012 by Bay Nature Staff

Each year, the nonprofit Bay Nature Institute, based in Berkeley, selects three individuals who are making outstanding contributions to the ...

1 Comment

Protecting the “Golden Foothills”

December 13, 2012 by Bay Nature Staff

Land Conservation Associate George Phillips coordinates Save Mount Diablo's Stewardship, Landowner Outreach and Hike programs.

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The Ghost Below at The Marine Mammal Center

November 19, 2012 by Bay Nature Staff

Special Art Exhibit Premiere: The Ghost Below at The Marine Mammal Center Date: Saturday, December 1, 2012 – December 31, ...

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A Letter from Istanbul

October 18, 2012 by Bay Nature Staff

Sean FitzHoward, winner of our 2012 Local Environmental Hero Award for Youth Engagement, recently wrote us about her experience aboard ...

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This Labor Day Weekend … Take a Hike!

August 30, 2012 by Bay Nature Staff

It’s Labor Day weekend and you’ve stayed close to home to avoid the crowds and the traffic jams, so where ...

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Regional Parks Foundation

August 23, 2012 by Bay Nature Staff

Some Bay Area kids have never seen a star in the sky or even know what a tree is. The ...

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Take a Tour of the New BayNature.org

August 20, 2012 by Bay Nature Staff

Dive into the natural world of the Bay Area with the new BayNature.org. Our new Trailfinder is your guide to ...

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EcoFair Marin Returns!

August 13, 2012 by Bay Nature Staff

author Van Jones Mark your calendars for September 9th! EcoFair Marin is back, and even better this year, with over ...

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Walking The Bay Trail

July 19, 2012 by Bay Nature Staff

After years working in office buildings, marketing executive Corinne DeBra was ready to get outside - and get outside she did! In 2009 she launched a walk around the entire perimeter of San Francisco Bay - logging 1,000 miles. Two years later, she decided to do it again.

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Bay Nature Magazine Honors 2012 Local Environmental Heroes

January 05, 2012 by Bay Nature Staff

Each year, Bay Nature Institute honors several individuals who are making outstanding contributions to the understanding and stewardship of the natural world of the Bay Area. Here are this year's winners.

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From Bay to Ridge, Janet McBride Blazes New Trails

July 21, 2011 by Bay Nature Staff

Janet McBride has spent the past 13 years championing the two region-wide trails that encircle the Bay Area, making her one of our great unsung heroes of human-powered outdoor recreation in the Bay Area.

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Get on the Bus!

January 10, 2011 by Bay Nature Staff

Butterflies fluttering through the Mission, mice nibbling their way down Sansome, pelicans gliding up Geary. Starting today and tomorrow, four MUNI buses will make a splash with Endangered Species, an art project that has redesigned buses with photographic murals of endangered or threatened species who live around San Francisco.

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People in Nature Photo Contest Winners

January 01, 2011 by Bay Nature Staff

In spring 2010, Bay Nature teamed up with Sarber's Cameras on a photo contest featuring images of people in the natural places they love. Dozens of local photographers submitted hundreds of photos. Check out the winners!

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EndangerBus Feature: Brown Pelicans

December 23, 2010 by Bay Nature Staff

Though California brown pelicans are the smallest of all pelicans, they are still very impressive birds, with wingspans occasionally as big as eight feet. Nearly driven to extinction by DDT, they've made a comeback but are now threatened by mysterious harmful algae blooms.

1 Comment

EndangerBus Feature: Coho Salmon

December 23, 2010 by Bay Nature Staff

Along the coast of Northern California, nearly every stream and creek once had its own migratory population of coho salmon. Their return each winter, once as reliable as the next train or bus, now happens in fewer and fewer places each year. Where the fish do return, it's often thanks to dedicated volunteers working to keep creeks healthy enough for our region's most charismatic nomads.

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EndangerBus Feature: Mission Blue Butterfly

December 23, 2010 by Bay Nature Staff

If you're lucky some spring day in a few small patches of land near San Francisco, you may catch the glint of a male mission blue butterfly's iridescent wings. If you are so fortunate, thank the determined conservationists who've been working to protect a small butterfly from big threats.

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EndangerBus Feature: Rapid Transit

December 23, 2010 by Bay Nature Staff

Imagine a time when buses and streetcars and trains are everywhere in San Francisco, when everyone takes transit and almost no one owns a private car. This was close to reality just 70 years ago. Since then the urban ecosystem has changed, and buses were outcompeted by private cars. Today, though, that urban ecosystem might be changing again.

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EndangerBus Feature: Salt Marsh Harvest Mouse

December 23, 2010 by Bay Nature Staff

Every once in a while, a small and unremarkable animal makes a huge impact on a landscape. So it is with the salt marsh harvest mouse around the edges of the San Francisco Bay. The endangered species status of the harvest mouse, along with that of the California clapper rail, has been a prime mover in the restoration of thousands of acres of tidal marshes around the region.

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EndangerBus Feature: San Francisco Garter Snake

December 23, 2010 by Bay Nature Staff

Reptile expert Robert Stebbins calls the San Francisco garter snake "one of the most beautiful serpents in North America." The snake's dazzling patterns of color serve as camouflage in its native habitat: the open marshes, stream banks, grasslands, and vernal pools of the San Francisco Peninsula. But the best camouflage is little help if your home territory gets built over.

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Act Now to Save California State Parks

May 29, 2009 by Bay Nature Staff

Now's the time to help save our California state parks from imminent closure under Governor Schwarzenegger's budget plan!

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Transit to Trails Map

April 01, 2009 by Bay Nature Staff

Download our updated map showing transit connections to protected parks and open spaces all over the San Francisco Bay Area.

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East Bay Shoreline Parks

October 01, 2005 by Bay Nature Staff

The East Bay Regional Park District and other parks agencies own and operate an impressive array of shoreline parks in ...

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Out of the Flames

July 01, 2005 by Bay Nature Staff

On October 3, 1995, a wildfire erupted on Mount Vision at Point Reyes National Seashore. Before the flames were extinguished a week later, 12,000 acres of this popular park had been scorched, and 45 nearby homes burned to the ground. A decade later, we return to Point Reyes for a lesson in local fire ecology to see how the landscape—and the community—were reshaped and renewed by the blaze.

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Soil Matters

January 01, 2005 by Bay Nature Staff

We tend to take the ground beneath our feet for granted, but soil is a defining feature of the landscape around us, in the garden and on the trail.

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Purple Needlegrass Takes Root in the Capitol

April 01, 2004 by Bay Nature Staff

David Amme, author of “Grassland Heritage” in Bay Nature’s April-June 2004 issue, called purple needlegrass “the undisputed candidate for official ...

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Bay Related Organizations

October 01, 2003 by Bay Nature Staff

There are many local organizations working to protect, restore, explore, and educate about San Francisco Bay. Many of them welcome ...

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Oak Woodlands Resources

October 01, 2003 by Bay Nature Staff

To learn more about California’s oaks, contact the following organizations: California Oak Foundation 1212 Broadway, Suite 810 Oakland, CA 94612 ...

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Elkhorn Slough: Further Exploration

July 01, 2003 by Bay Nature Staff

There are two kayak launch sites for Elkhorn Slough: Kirby Park and Moss Landing Harbor District Launch Site (just north ...

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Native Plant Gardening Resources

January 01, 2003 by Bay Nature Staff

NURSERIES, SEED SUPPLIERS, PLANT SALES, AND BOTANIC GARDENS Bay Natives   375 Alabama St. #440 San Francisco, CA 94110 (415) ...

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Whale Resources

January 01, 2003 by Bay Nature Staff

To See Gray Whales The Oceanic Society has offered naturalist-led whale-watching excursions in the San Francisco Bay Area since 1972. ...

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Whaling from San Francisco Bay

January 01, 2003 by Bay Nature Staff

Though whales were never hunted in San Francisco Bay itself, the whaling industry had a long presence here. Beginning in ...

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Star Gazing and Night Hiking Resources

October 01, 2002 by Bay Nature Staff

To See the Stars Well do I know that I am mortal and a creature of one day;but when my ...

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The Eastshore State Park and the Fate of the Albany Bulb

July 01, 2002 by Bay Nature Staff

The new Eastshore State Park comprises one of the largest undeveloped public landholdings fronting San Francisco Bay, stretching from the ...

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