Flight oF the Condor - Golden Gate Audubon Society
←
→
Page content transcription
If your browser does not render page correctly, please read the page content below
the newsletter of the golden gate audubon society // vol. 106 no. 1 winter 2022 Flight of the Condor by eric schroeder J oseph Belli picked up a ping from a GPS transmitter at 8:30 a.m. on September 12, 2021, as his subject crossed the Altamont Pass. A short while later, the subject circled Mount Diablo, and within two hours, headed back south. If you’d been on the mountain that day and looked up, you might have seen her, a California Condor (Gymnogyps californianus), with a wingspan of over nine feet, the largest bird in North America. CONTINUED on page 3 Condor 828 soaring over Pinnacles National Park. Tim Huntington
Sandhill Cranes. Loggerhead Shrike is among the birds found at Tesla Park. Peter Shen Steller’s Jay on bench. Building a Case for Better Bird Names by glenn phillips, executive director a t a recent parent event at my daugh- ter’s school in Orinda, a large, noisy blue bird with a black crest flew over the The related Mutsun-speaking people called it KiKi, and the Plains Miwok-speaking people, including the neighboring Saklan, family with crows and ravens, as opposed to the New World jay subfamily. In November, Golden Gate Audubon assembled parents in the school garden. called it KajKajtʃaja, both of which echo endorsed the Bird Names for Birds move- The head of the school looked me right in the easily recognizable call of this bird. ment, joining David Allen Sibley and the eyes and announced that the school The Steller’s Jay and the Blue Jay are in hundreds of other scientists and conserva- mascot, a “Blue Jay”, had arrived to welcome fact closely related, so calling the crested, tion groups in calling for the end of eponyms us. We both knew it was a Steller’s Jay that blue and black jays of the west, “blue jays”, in the official common names for birds. had flown by and she expected me to cor- is correct if we are only identifying the “Western Blue Jay” tells you so much more rect her. This time, I didn’t. In the moment, birds at the genus level. Who would look about the bird: where it lives and what other I wondered, ‘why did this bird need to carry down on someone for correctly identify- species are closely related to it, while also the name of a German explorer? What did ing a flycatcher as a member of the genus avoiding associations with colonialism and the Chochenyo-speaking Huchiun people Empidonax, while not being able to dis- racism that names like Steller, Scott, and who lived here call this bird? tinguish which species? Even the English McCown conjure. At the same time, we Unfortunately, the Chochenyo name for name “jay” is suspect here. New world jays open doors for new people to love and take this bird is lost to mankind, a victim of the are not particularly closely related to the care of the birds whose planet we share. same colonialism that doomed the Dodo. European Jay, which is in the same sub- (Being dinosaurs, birds were here first.) news briefs Altamont Pass Update Winter Classes Annual Report 2021 In response to Alameda County’s failure to Winter is finally here, which means our adult The 2021 Golden Gate Audubon Annual Report require an adequate environmental impact report education class schedule is up and registration is now publicly available on our website. Check on the proposed Mulqueeney Ranch Wind Farm is open. This line up includes new classes on out what we’ve been working on over the past project in the Altamont Pass Wind Resource gulls in Northern California and swifts and fiscal year. From our education programs to our Area, Golden Gate Audubon along with other hummingbirds, plus introductory classes and restoration and conservation projects, the annual local Audubon chapters filed a lawsuit in early classes on shorebirds, diving birds and birding by report is a great way to see your contributions in November 2021. ear. Check out our website for more information. action. 2 THE GULL winter 2022
features FLIGHT OF THE CONDOR from page 1 Belli, a volunteer at Pinnacles National Park, knew this particular bird, Condor 828. In April 2016, she was the first chick to fledge successfully there since condors were reintroduced in 2003. At five-and- a-half years old, she’s almost mature, and, as Belli says, “She likes to roam.” But her visit to Mount Diablo was something new. Although juveniles without their own ter- ritories are known to explore new places, none had ever been documented venturing this far north into the Bay Area. Twenty-five years ago, condors were on the brink of extinction due to habitat loss, Matt Mais shooting, egg collection and poisoning. But a captive breeding program with the last remaining 27 condors, run by the San Tiana Williams-Claussen, Director of Yurok Tribe Wildlife Department, with California Condor. Diego Wild Animal Park and Los Angeles Zoo, proved successful. Two condors were initially reintroduced into the wild in 1992. As of 2020, there were 504 living California condors, 329 of Today wild populations exist in southern which fly free. California, Arizona, Baja California (Mex- ico), Big Sur, and Pinnacles. As of 2020, there were 504 living California condors, fire near Big Sur in 2020, and another 13 in chickens, pigeons and some finches, but 329 of which fly free. from the central California flock died from the offspring rarely survive. While exam- These birds still commonly face setbacks dangers such as lead poisoning. The over- ining the genetic database for California however. Generally hatching just one egg all mortality rate for the central California Condors, researchers noticed two chicks per year, California Condors are susceptible population was 20 percent last year— were biologically fatherless. Each bird car- to natural calamities and human-caused much higher than the three to five percent ried genes from its mother but neither had hazards. Fourteen birds died from the Dolan rate that Belli says condors need to be self- genes from any male bird in the database. sustaining in the wild. One bird died while still a juvenile, but the But there’s good news, too. A collabo- other lived to be eight and died from com- ration between the Yurok tribe from the plications of an injured foot. Klamath River area on the California- Meanwhile, could the September sight- Oregon border and the U.S. Fish and ing of Condor 828 over Mount Diablo Wildlife Service will soon expand the signal the arrival of a condor population in range of condors in California. Condors the East Bay? Unlikely, according to Belli. (prey-go-neesh in Yurok) are the top birds “Condors are very, very social birds and in the Yurok ceremonial hierarchy. Soar- don’t really stake out new territories,” Belli ing up to 15,000 feet, they are thought said. “The birds in the Central California to carry prayers to heaven. According to flock haven’t migrated more than 35-40 Tiana Williams-Claussen, director of the miles from their original release sites.” Yurok Tribe Wildlife Department, four Still, 828’s brief visit highlights the juveniles, three males and a female, will need for us to keep our local skies safe arrive in February 2022 and be released for all kinds of winged creatures. Golden later in spring. Gate Audubon Society returned to court Other startling news about condor this fall to protect birds and bats from a propagation came in November when San poorly-planned expansion of wind turbines Diego Zoo scientists announced two cases at Altamont Pass. We’re fighting not just Mark Mauno of parthenogenesis—a rare event when for Golden Eagles, Red-tailed Hawks, and an egg becomes an embryo without the American Kestrels—but also for the occa- California Condor. introduction of sperm. It’s been observed sional California Condor like number 828. winter 2022 THE GULL 3
features The Inaugural Berkeley Bird Festival by ryan nakano f rom the Peregrine Falcons nesting in the Campanile of the UC campus to the hummingbirds zipping along in back- way at the David Brower Center, a four- hour-long program of bird stories, images, poems, songs, and demonstrations took With many people turning to the outdoors since the start of the COVID-19 pandemic, birdwatching has seen a dramatic increase yards, birds are everywhere in Berkeley. place upstairs in the form of Winged in popularity and the inaugural Berkeley At the same time, many common Wonderment. Just outside of the Winged Bird Festival was a perfect way to foster backyard birds in Berkeley including; Chick- Wonderment program, groups participated that energy, excitement and willingness to adees, Juncos and Woodpeckers, risk facing in painting birds with watercolor, folding take action to protect local birds and their a significant population decline from cli- origami cranes and building pinecone bird environment. mate change, according to a report from the feeders. The Berkeley Bird Festival was made National Audubon Society. By the end of the day, an estimated possible by the financial support of the UC In an attempt to celebrate the city’s 1,000 attendees took part in some aspect Berkeley Chancellor’s Community Partner- diverse birdlife and acknowledge the resil- of the festival’s programming. Importantly, ship Fund, and the following partnerships; ience of these winged wonders, Golden the 350 East Bay action table collected over the UC Botanical Garden at Berkeley, the Gate Audubon and the California Institute 100 signatures to be sent to Congress to UC Berkeley Museum of Vertebrate Zool- for Community, Art, and Nature (California pass legislation known as the Build Back ogy, Cal Falcons, David Brower Center, Bay I CAN) organized the first ever Berkeley Better Act to combat climate change. Nature, and Berkeleyside. Bird Festival on Sunday, October 17, 2021. Spread between the UC Berkeley Cam- pus, the David Brower Center and nine distinct birding hotspots in the greater Berkeley area, the festival offered attend- ees multiple opportunities to learn about the lives of their feathered neighbors and the important role they play in the local ecosystem. Over 200 new and seasoned birders alike enjoyed guided birding field trips throughout Berkeley; exploring Aquatic Park, the UC Botanical Garden, Vollmer Peak in Tilden and Cesar Chavez Park, among other sites. Following the lead of Golden Gate Audubon Eco-Ed Director Clay Ander- son, individuals and families chalked their Ryan Nakano favorite birds onto concrete in front of the Museum of Vertebrate Zoology and the Li Ka Shing center on campus. Across the Youth participate in chalk art for the Berkeley Bird Festival. Upcoming events Engaging Elders in Climate Change Great Backyard Bird Count Birdathon January 9, 2 - 4 p.m. on Zoom February 18–21 March 12 – April 24 Bill Mckibben co-founded 350.org to Didn’t get your fill of bird counts this winter? We’re returning to in-person field trips for this mobilize youth to address climate change. Join the Great Backyard Bird Count and spend year’s Birdathon running from March 12 to April Now Mckibben is calling on the older as little as 15 minutes counting birds to be 24. Don’t miss this opportunity to experience generation to step up to support youth submitted to birdcount.org from February one-of-a-kind birding trips while contributing to activists. For more information on this talk, 18 - 21. Your data will help researchers better Golden Gate Audubon so we can continue offering visit ashbyvillage.org understand the health of our bird populations. free field trips throughout the rest of the year. 4 THE GULL winter 2022
FEATURES Mark Rauzon Two Ashy Storm-petrels with six Fork-tailed Storm-petrels. Ashy Storm-Petrel in Peril: A Farallon Islands Story by whitney grover s tanding on the coast, looking out at the Pacific Ocean, it’s easy to see why early colonizers considered this the end of the earth. On clear days, due west of the Golden Gate, you can barely naturally occurring there) who are attracted by the food supply. The Burrowing Owls stay, the mouse populations decline, eventually crashing to low levels. The timing of this crash is unfortunate, as make out the sharp tooth of islands on the horizon. seabird chicks are hatching. Burrowing Owls switch to a diet of Venturing out by boat, you lose sight of land but miraculously, you the young Ashy Storm-petrel and others. The house mouse popula- are not alone. First Gulls and Murres, then; Shearwaters, Jaegers, tions bounce back, and today they are at plague levels. Humans Auklets, Puffins and Albatross come into view. Further out you’ll created this new food web and it happened too quickly to allow the find the Storm-petrels, impossibly small birds zooming over the sea. birds to adapt. Scientists at Point Blue Conservation Science have Their drab gray bodies are shorter than a robin’s, but their wing- determined that eradication of the house mouse will allow the Ashy span is twice as long. They prey on small sea creatures at night, Storm-petrel populations to rebound. drink seawater and nest in rocky crags. Thirteen years ago U.S. Fish and Wildlife began a study cul- Most humans will never see an Ashy Storm-petrel, and you’d minating in a 2019 published plan to eradicate the invasive house think all their adaptations to a world outside our bounds would keep mouse from the South Farallon Island. Although rodenticide will be them safe. Unfortunately, seabirds worldwide face many human used, it is not without serious consideration of the environmental caused threats and Ashy Storm-petrels are designated endangered impacts and review of all possible alternatives. The plan also uses by the International Union for Conservation of Nature (IUCN). case studies of other islands where the same techniques were used Thirty miles off San Francisco Bay is that mysterious tooth: the successfully. Rodenticide should always be a last resort, but unfor- Farallon Islands. Half the world’s Ashy Storm-petrel population tunately that’s where we are in correcting the ecological imbalance nests there along with many other seabird species, marine mam- to protect these sensitive seabird species from potential extinction. mals, reptiles, and insects. But there’s one animal found on the islands you will certainly recognize, brought by humans: the house mouse. Humans came to the Farallones in the 1800s and centuries of coming and going left the natural state of the island heavily impacted. Today, the Island is a Natural Wildlife Refuge, and the only humans allowed are biologists, tasked with studying and protecting its natural resources. Improvements have been made Susan MacWhorter including removal of other introduced species such as cats and rab- bits. But the house mouse remains, and they’re a serious problem for the Ashy Storm-petrel. On the island, house mouse populations increase each year Housing structures now occupied by Point Blue staff and volunteers on the Farallon just in time for raptor migration, bringing in Burrowing Owls (not Islands. winter 2022 THE GULL 5
speaker series The California online spotted owl Thursday, February 17 7 p.m. program anu kramer Zoom “How do different kinds of fire influence the California spotted owl?” We examined owl behavior in a high- severity mega-fire, as well as in fire-restored National Parks and found consistent Sheila Whitmore preferences regarding fire severity and patch size that inform future forest and fire California spotted owl in burned snag nest. management throughout the region and influence the future of these owls as well as human com- munities and the Sierra Nevada ecosystem as a whole. Anu Kramer received her doctorate in 2016 from the Univer- sity of California – Berkeley in Environmental Science, Policy, and Management, where she specialized in fire ecology, GIS, and remote sensing. She has been a researcher with the Peery Lab at Eddie Bartley the University of Wisconsin – Madison since 2018, where she works primarily with California spotted owls. Lazuli Bunting. Gardening for online Birds Thursday, January 20 7 p.m. program Connecting online noreen weeden and eddie bartley Zoom Ecotourism and Thursday, March 17 7 p.m. program Conservation Zoom You can have a beautiful native plant garden that attracts amaz- ivan phillipsen ing birds, butterflies and other wildlife. Learn about the benefits of local native plants and some of the wonderful birds that are drawn Conservation of the world’s to this place and to these plants. Noreen Weeden and Eddie Bartley bird and wildlife diver- will discuss what migrating and resident birds need and how to pro- sity has become a topic of vide what the birds are seeking. enormous importance in Eddie Bartley is President of the Yerba Buena chapter of CNPS the 21st century. Ecotour- and the Farallon Islands Foundation. He is an avian researcher and ism is among the many instructor for the California Academy of Sciences and Golden Gate approaches for channeling Ivan Phillipsen Audubon. Noreen Weeden was formerly Volunteer Director with resources into conservation Golden Gate Audubon and is currently project managing a habitat efforts. This presentation restoration project. She is on the board of Yerba Buena CNPS. will explore some ways that New Zealand Kaka. we can help protect the nat- ural world by experiencing it through travel. Ivan is a dedicated naturalist with a background in scientific Our monthly Speaker Series is now online! research. He holds a M.S. in Biology from Cal State San Bernardino To receive email alerts with links to each Zoom presentation, and a doctorate in Zoology from Oregon State University. As Co- email us at mturner@goldengateaudubon.org and put owner of Wild Latitudes, Ivan has been able to apply his knowledge “speaker series” in the subject line. in crafting and leading ecotours around the world. 6 THE GULL winter 2022
donations masthead Thank you for being part of our donor and member community. board of directors President We are deeply appreciative of every individual, business, and organization who Eric Schroeder supports Golden Gate Audubon. In this issue we recognize our new members in 2021 Vice President and Co-Chair of East Bay Conservation Committee and all our major donors from the past year, January 1, 2021 through December 1, 2021. Laura Cremin Secretary and Co-Chair of Development Carol Baird Major Donors Bracke, Tim Bramer, Margaret Bray, Marilyn Jett, Mona R. Jhaveri, Susan Poirier-Klein, Felicia S. Johansson, Patricia Powell, Kayla Treasurer and Chair of Finance Committee Brenner, Kate Bristol, Laury A. Joseph, Joe Powers, Karen Pressprich, $10,000 and above Bruce Mast Terry Britt, Ronald Brown, Joseph, Margaret V. Julia Rabkin, Jeffrey Anonymous Jared Brubaker, Nancy Katcher, Sean Kawa, Rachlin, Robert Raffel Chancellor’s Office, UC Rebekah Berkov, Amy Chong, Blake Edgar, Buermeyer, Cynthia Daniel Keady, Emilie , Jerome Rainey, Paula Berkeley Whitney Grover, Derek Heins, Butler, Debra A. Callahan, ‘M’ Keas, Grant Kerber, Rantz, Peggy D. Rehm, National Fish & Wildlife Susan MacWhorter, Christine Okon, Stephen Cassidy, Pascale Joanie Kibbey , Christine Cheryl A. Reinman, Foundation Dan Roth, Christina Tarr Cervantes, Davin Chan, Kiesling, Amy Kilgard, Ann C. Reis, Susana O. National Audubon Jessie Chen, Emiy Elyse King, Gabi Kirk, Renaud, Peter Richards, Society Cheng, Simon Chiu, Lisa Powers Kirkpatrick, Deborah L. Robbins, staff Karen & Ben Rosenbaum Amy Chong, Raymond Howard Kirsch, Marsha Elizabeth Rock, Michael University of California, Executive Director Chu, Richard Compean, Kirschbaum, Edna Rodevich, Valerie C. San Francisco Glenn Phillips, 510.843.2222 ext. 1002 William E. Conaway, Kiyono, John Klabau, Rodgers, Leslie Roffman, Salesforce.com gphillips@goldengateaudubon.org Elayna Contreras, Phillis Helen Knights, Denise E. Wendy Rogers, Sara Foundation Cooper, Caren Corley, Koker, Steven Kornberg, Rosario, Janet Rosati, Director of Development Eric Schroeder & Susan Susan Cossette, Ronnie Alexander Sahba Koumis, Vicki Rosen, Patti Rossi, Catherine Millar Palo E. Cramer, Joe Cristofalo, Karen Kramer, Alan Sarah Royce, Gabriella cmillar@goldengateaudubon.org Kathy Cutting, Janis Kren, Sam Krueger, Lisa Santis, Lisa Sargent, $5,000 to $9,999 Dairiki, Courtney A Gayle Kwietniak, Anne Michele Schaal, Debbie Volunteer Services Manager Carol Baird & Alan Harper Damkroger, Eli Davey, Landstrom, Kathryn K Schantz, David Schlais, Janet Carpinelli Mary Betlach Cian Dawson, Manisha Layton, Lynn Lazarus, Victoria Schlesinger, jcarpinelli@goldengateaudubon.org East Bay Community Dayal, Patricia Decker, Betty W. Lee, Ralda Lee, Kelly Schoonmaker, Marie Delahaye, Clare Communications Associate Foundation (Agerter Tina Lenderman, Mary Margaret Schrand, Sarah Judd Fund) Demer, Paul J. Derenthal, R. Levak-Cohen, Cathy Schroeder, Michelle Ryan Nakano Flora Family Foundation Jane Diamond, Andrea Lewis, Wendy Leyden, Schurig, Margot Sheffner, rnakano@goldengateaudubon.org Kathryn Jordan Dorn, Elaine Dowd, Linda Liebschutz, Eileen Shields, Claudia Youth Programs Manager Ardeen Russell-Quinn Monica Duclaud, Ben M. Frank Limacher, Boshin Sieber, Betty Sin, Alok Clay Anderson Dudek, Kathryn Duerr, and Gloria Lin, Martin Singhal, Ryan J. Smith, canderson@goldengateaudubon.org Catherine Duggan, Diane Long, Diana Loomis, Scott J. Sommerfeld, $3,000 to $4,999 Ely, Hannah Elzinga, Bob Jen Lumanlan, Lenore Jennifer Sowerwine, Office Manager East Bay Community Epstein, Peter and Tandra Lustig, Linda M. Currie, Geetha Srikantan, Joan Meshay Turner, 510.843.2222 ext. 1001 Foundation (Buehler Ericson, Laural Fawcett, Kathleen Maclay, Anthony Starr, Gunther Stein, mturner@goldengateaudubon.org Fund) Carol A. Felch, Anushka Maguire, Maureen Lisa Stockholm, Lori Josh Jensen Fernandopulle, Nikola Database and Membership Coordinator Maher, Rosemary Mans, Stoneman, Michael Pat Kirkpatrick & Sid Filby, Jean Fiske, Bryan Justin Pepito Jacquelyn Marie, Dell Sullivan, Stephen R. Wolinsky Flaig, Feather Flores, Martin, Nancy Martini, Suttle, Ajanta Swarnakar, jpepito@goldengateaudubon.org Miles and Mel McKey Julieta Fox, Lauren Catherine Mattison, Matthew Tarlach, Regina Phelps Friedman, Teale Fristoe, Barbara Matz, Randy Kathleen E. Taylor, Susan Helen Mckenns and Allan Dawn Furseth, Linda volunteer LEADERSHIP McDevitt-Parks, James Tenney, Lee J. Thomas, Ridley Garber, Pamela Garcia, McElroy, Mary McIlroy, Karen L. Thompson, Jacqueline Smalley Adult Education Chair Ruth Geos, Afshin Gharib, Patrick J. Mcnamara, Erika J. Thost, Barbara Geraldine Young Maureen Lahiff, mlahiff@aol.com Rebecca Ann Gies, Pilar Mendoza, Rohit J. K Tjernell, Rebecca Mike Gifford, Anna Gil, Menezes, darcy mercord, Todd, Mary M. Torpey, Field Trip Coordinator New Members Kathleen A Gilcrest, Mary Gilliford, Jan-Christian Declan Brice Mercord- Elizabeth Tuckwell, Christina Tarr, christina.tarr@gmail.com Weiss, Peter Meyer, Johanna Turko, Wakako in 2021 Goettsche, Miye Goishi, Howard E Meyerson, Elia Uritani, Aleeta M Van Travel with GGAS Coordinators Thank you to all our Daniel Goldstein, Meza, Catie Michel, Beata Runkle, Laura Veit, LJ Cris Heins, Dawn Lemoine, and Eric Schroeder members, including these Michael Gollner, R. Milhano, Samantha Vincent, Terry Vogt, KF travelprogram@goldengateaudubon.org new members who joined Robert S. Gomez, Taryn Miller, Laura Miller, Vollmayer, Mary Wakely, Golden Gate Audubon for Goomishian, Guido Karen L. Miller, Roger Gwen Walden, Barry MISSION STATEMENT the first time this year. Gores, Mia Gottlieb, and Win Mixter, Keith Adam Waldman, James Golden Gate Audubon Society engages people Seiko Grant, Alexa Moody, Susanna Moore, Walker, Katharine Walter, to experience the wonder of birds and to translate Tom Adams, Melissa Graumlich, Hunter Green, Edith Morrow, Lynn Ryan Watson, Michael that wonder into actions which protect native bird Agnello, David Aid, Kelby Green, Mick Griffin, Mueller, Katie A. Murphy, Wei, Karen Weil, Lisa populations and their habitats. Rikki Anderson, Janan Bob Gronke, Yumang Cristina M Najarro, Weiss, Sharon Rose Apaydin, Catherine Guintu, Jennifer Hackney, Emma Nation, Nancy Welch, Louise White, Tom M. Archbold, Michelle Iman Haidarzada, Alex Neal, Tuan Nguyen, Whitehead, Maribeth ABOUT GOLDEN GATE AUDUBON society Arguelles, Laura Armor, L. Hansen, Sue Hawley, Amelia Nielsen, Linda Willcox, Nancy Williams, The Golden Gate Audubon Society was founded Diana Austin, Alan Bade, Peter Hawrylyshyn, C. Nowell, C. Alexandra Patricia E Williamson, January 25, 1917. Margaret Balk, Robyn Donna Hayes , Daniel D. Odabachian, Barry M. Sam C. Wilson, Stanley Barker, Anna Barnett, Heagerty, Betsey Hecht, Ogilvie, Winifred Olliff, The Gull is published four times per year. Special M Winterman, Carol Eddie Bartley, Janet E. Marsha Henderson, Madeline Ono, Margaret S. Wood, Sara Wynne, third-class postage paid in Oakland, CA. Send Barton, Caroline Bas, Jared O. Henning, Allison Ostermann, Susan E. Jamie Yang, Diana Young, address changes to the office promptly. The post Chris Paul Baumgart, Henry, Alex Henry, Jonah Palo, Julie Parsonnet, Ruthie Young, Mark Yuan, office does not forward The Gull. Daniel O. Beery, Alletta Hershowitz, Annette Gayle Peterson, Jeanette Andersen Yun, Roberta Belin, Anthony Bennet, Herskovits, Robert Hiatt, Pettibone, Richard Pfohl, R Zallen, Vicky Zeamer, Golden Gate Audubon Society Mary Bennion, Margot Michael Hingerty, Lincoln Lynn Pincus, Mark Pinski, Diane Zelman 2530 San Pablo Avenue, Suite G Bezrutczyk, Kristine Ho, Kathryn Hope, Ken Berkeley, CA 94702 Bidwell, Meg Bishop, Howe, Linda Howell, Jane Office hours: Monday through Thursday, Stephen Blitch, Susan D. Hyun, Naomi Ariel Igra, Please know that we work hard to ensure the 10 a.m. – 5 p.m. Bloch, Janice J. Bohman, Consuelo Inez, Alicia accuracy of this list. If your name has been omitted Telephone: 510.843.2222 Deborah Bonet, Wolf Ivanhoe, Monica Jackson, Bostedt, Patricia Boyd, Lisebeth Jacobs, Mary or misspelled, let us know at 510.843.2222. goldengateaudubon.org Barbara Boyle, Paul Ann Jawili, Richard This issue of The Gull was published January 2022. winter 2022 THE GULL 7
Golden Gate Audubon Society 2530 San Pablo Avenue, Suite G Non-Profit Org. Berkeley, CA 94702 U.S. Postage Paid Return service requested Oakland, CA Permit No.1702 www.goldengateaudubon.org The Gull is printed with soy-based inks on chlorine-free paper, 30% postconsumer waste content. 4 Berkeley Bird Festival 5 Ashy Storm-petrels and the Farallones 6 Speaker Series The first ever Berkeley Bird festival brought The endangered Ashy Storm-petrel under Winter is the perfect time to learn how to beginner and seasoned birders out to threat of extinction from invasive house plant a beautiful native garden that equally support their feathered neighbors. mice on the Farallon Islands. attracts and benefits local birds. backyard birder seen flying in small groups and feasting on berries in trees including fruit from Juniper, Mistletoe and Elderberry plants. They also love dining on insects, enjoying grasshoppers, caterpillars, ants, beetles and moths, to name a few. During the breeding season, they often migrate south, arriving in early spring and lingering into fall. The male scouts out potential nesting sites, usually natural hollows in oaks or pines or old wood- pecker holes, and sings to defend his territory. Nesting boxes set on fence posts are also attractive options, though no matter where he goes, competition is fierce and he often has to fend off competitors, particularly Tree Swallows. Rick Lewis After courting the female by fluttering in front of her, wings and tail spread, serenading her with his song, the business of building the Western Bluebird at Crab Cove in Alameda. nest commences. The female being the primary architect, creates a cup of weeds, grasses and twigs. She’ll lay on average four to six pale Western Bluebird blue eggs and both parents will share the duty of bringing food to the nestlings. The young will fledge within two to three weeks and the by lydia bruno and ryan nakano parents may attempt another brood. o Due to loss of habitat and nesting sites among other significant ften seen perching on fence posts or wires near open fields factors, Western Bluebird populations are in decline. Their preferred dotted with trees or open woodlands, the Western Bluebird nesting cavities are often found in dead trees which are frequently is striking at first glance, especially the male with his deep terra- cut down and removed. Nesting boxes help fill this void, yet, like cotta breast and gleaming cobalt blue neck, wings, back and tail. human shelter, the supply is not keeping up with demand. His partner’s coloring is more subtle, with her peach colored breast, If you have a yard, building a nesting box is an easy and effective soft gray back and wings shaded gently with blue. way to help maintain Western Bluebird populations. Cornell’s Nest- Found throughout the western U.S., extending down into Mexico, watch website (https://nestwatch.org) provides detailed instructions the Western Bluebird is social during the nonbreeding season, often on how to build and maintain these boxes. 8 THE GULL winter 2022
You can also read