By Ilana DeBare

The Burrowing Owls of Cesar Chavez Park are beloved by Berkeley residents and park visitors. More than that, they’re listed as a Species of Special Concern in California due to their dwindling habitat and numbers.

Over Thanksgiving weekend, Berkeley’s owl lovers were jolted by some tragic news — the one Burrowing Owl spotted in the park this year was found dead on a park bench.

A passerby managed to photograph the owl and shared the photo with Golden Gate Bird Alliance’s dedicated group of volunteer Burrowing Owl docents. But by the time GGBA learned of the death, the body was gone and so no one was able to conduct a necropsy to determine its cause of death.

“We are all very saddened by the tragic loss of our single Burrowing Owl in CCP this winter season,”  docent coordinator Della Dash wrote in an email to the group, which has been monitoring and educating people about the owls since 2009. “We are trying to piece together what happened. But without the remains it will be impossible to know what really happened, unless someone from the public comes forward to report what occurred.”

The dead Burrowing Owl on a park bench

One possibility is that the owl may have been attacked by an off-leash dog, and left on the bench by its owner or by another park visitor. Along with helping people spot the owls through a scope, the docents spend a lot of their time trying to educate dog owners to keep their pets leashed when outside the park’s designated off-leash area.

Other possibilities are that the owl was the victim of a larger raptor, a feral cat, or some other predator. But the upshot is, without a body to analyze, we will not be able to pinpoint a certain cause of death.

The loss of a single owl is more significant than it might seem. Cesar Chavez Park has long harbored a small population of Burrowing Owls that spend the winter in ground squirrel burrows and then fly elsewhere to breed. Several years ago, one Cesar Chavez owl was documented by leg bands nesting as far away as Idaho, where it fledged three clutches of young.

The Burrowing Owl that was found dead over Thanksgiving weekend / Photo by Miya Lucas The Burrowing Owl that was found dead over Thanksgiving weekend / Photo by Doug Donaldson

But the park’s wintering owl population has dwindled, possibly due to California’s drought.…

By Ilana DeBare
Golden Gate Bird Alliance members are talented birders… but that’s not their only accomplishment. A number of GGBA members are also authors! So — now that it’s holiday shopping season — we figured it might be nice to spread the word about some of their books.
We’ll start with books related to wildlife and conservation. But after that, as you’ll see, GGBA members have a wide range of interests and knowledge. Consider their books as holiday gifts: If you buy one at your neighborhood independent bookstore, you’ll be supporting both local business and a fellow Audubon member!
Spare the Birds! George Bird Grinnell and the First Audubon Society, by Carolyn Merchant. In 1887, George Bird Grinnell launched Audubon magazine, one of the first efforts to preserve bird species decimated by the women’s hat trade, hunting, and loss of habitat. Carolyn, a professor of environmental history at U.C. Berkeley, tells Grinnell’s story and how, even though his initial organization and magazine lasted only two years, he had a lasting impact. Published this fall by Yale University Press. See http://yalebooks.com/book/9780300215458/spare-birds.
Spare the Birds
Citizen Science: Searching for Heroes and Hope in an Age of Extinction, by Mary Ellen Hannibal. Combining firsthand reporting, research, and memoir, Mary Ellen wades through tide pools and chases hawks with dedicated volunteers seeking to learn about and protect wildlife. You may have heard her talking about Citizen Science on KQED Forum! Published this fall by Workman Publishing. See https://www.workman.com/products/citizen-scientist.
Running Wild, by Elaine Bond Miller. Children’s board book about animals in motion, with Elaine’s great photos of a deer prancing, bobcat prowling, snake slithering, and even a butterfly fluttering in mid-air. Particularly good for children under 4. Published this fall by Berkeley-based Heyday books. See https://heydaybooks.com/book/running-wild/.
Page from Running Wild by GGBA member Elaine Bond Miller
Birds of Northern California, by David Quady, Jon Dunn, Kimball Garrett, and Brian Small. This handy, pocket-sized photographic field guide was published in late 2015 and features 400 Northern California species. Co-author Dave Quady is a GGBA birding instructor and a co-compiler of our Oakland Christmas Bird Count, and we have some copies available for sale in our online store or Berkeley office. Click here to read a review of the book that we ran on this blog last year.
Isles of Amnesia, by Mark Rauzon. Mark, a biologist and Laney College professor, has worked for 25 years on eradicating invasive plants and animals from islands in the Pacific.…

By Ilana DeBare
The City of Richmond adopted a new zoning plan this month that includes standards for Bird-Safe Buildings  — joining a growing number of Bay Area cities that are encouraging bird-safe building design.
The new rules require that windows greater than 24 square feet in size be treated in some way to prevent bird collisions. Birds can’t perceive clear glass, but they can be steered away by techniques that include fritted glass, ultraviolet patterns within the glass, mullions, shades, and louvers.
Golden Gate Bird Alliance worked with Richmond planning staff to develop the guidelines. They follow similar standards in San Francisco and Oakland, which were the first two cities in the country to adopt municipal bird-safe building rules.
The new rules are a particularly welcome development in Richmond, since the city has such an extensive waterfront, which draws tens of thousands of water and shorebirds each year, including many winter migrants. Across North America, it’s estimated that up to 1 billion birds die each year from window collisions.
Aerial view of Richmond, showing the extensive waterfront.
“This is a great victory for the birds and for the people of Richmond who care about their wildlife,” said GGBA Executive Director Cindy Margulis.
Richard Mitchell, Planning Director for Richmond said:

“The adoption of these standards reinforces the City’s commitment to the environment by ensuring that new buildings are designed to reduce bird mortality from circumstances that are known to pose a high risk to birds and are considered to be bird hazards.”

With Golden Gate Bird Alliance raising the issue and providing input, San Francisco enacted the country’s first municipal bird-safe building standards in October 2012. Oakland followed suit in June 2013. Since then, Sunnyvale and Palo Alto have also passed bird-safe building standards, and cities such as Portland, Oregon, and Highland Park, Illinois, are currently considering them.
Red-tailed Hawk at a window. Photo by Deborah Allen/National Wildlife Federation
 
“We were fortunate that Richmond was working on updating their zoning and they were able to incorporate this new piece,” said Noreen Weeden, GGBA’s Conservation Project Manager, who started working with the city last March.
Approved by the Richmond City Council on November 15 as part of the new zoning plan, the standards apply to new construction and renovations. There is an exemption for small structures (less than 45 feet high) where glass makes up less than half of the facade, unless the building is in a “bird collision zone” adjacent to a park or body of water.…

In 2015, Golden Gate Bird Alliance started an initiative to save the lives of S.F. Bay water birds and marine mammals through the recycling of monofilament fishing line. Our volunteers built recycling containers out of PVC pipe, and we arranged for them to be placed at popular East Bay fishing spots. This week, the Port of San Francisco followed suit, thanks to the initiative of filmmaker Judy Irving. The following is a story that appeared on KTVU’s web site.
Receptacles for used recreational fishing line and hooks, which could cause the demise of pelicans, have been placed this week at nine popular fishing spots in San Francisco, port officials said today.
The receptacles were installed Monday and Tuesday at locations along San Francisco Bay, including Hyde Street Harbor, Fisherman’s Wharf, Pier 7, Pier 14, Rincon Park, Brannan Street Wharf Park, Aqua Vista Park, Bayview Gateway Park and Heron’s Head Park.
“Getting tangled up in fishhooks and fishing line are two of the most common problems that pelicans face in the wild,” documentary filmmaker Judy Irving said.
Pelican entangled in discarded fishing line
Irving produced and directed “Pelican Dreams,” a story about pelicans in the wild, as well as “The Wild Parrots of Telegraph Hill.”
The receptacles are made from 6-inch plumbing pipe, which was fastened to the pier at Pier 14. The pipe can be removed and the line and hooks collected for recycling.
“It will save pelicans’ lives,” Irving said.
A tenth receptacle will be installed at Pier30/32 and talks with federal officials are expected to begin soon about installing receptacles on federal lands around San Francisco such as in the Golden Gate National Recreation Area, port officials said.
Installing recycling bins at MLK Jr. Regional Shoreline in 2015
Port staff may install receptacles at other San Francisco locations too.
“We know that fishing line can really harm wildlife,” the port’s interim Executive Director Elaine Forbes said. She said the port takes environmental stewardship very seriously.
Irving said San Francisco officials acted quickly after she asked Supervisor Aaron Peskin whether anything could be done to stop the harm from fishing hooks and lines.
Peskin met with Forbes and struck the agreement. The receptacles cost $100 to make. The whole project cost $1,200, Forbes said.
“This is truly government at its best: responsive to residents’ ideas and pushing cost-effective solutions, all within a relatively short period of time,” Peskin said in a statement.…

By Bob Lewis
In 2004, the Cornell Lab of Ornithology published the second edition of its Handbook of Bird Biology, a hefty volume of 11 chapters. It was in black and white, and Cornell offered a companion mail order course that seemed tempting to some at Golden Gate Bird Alliance, but at the same time appeared daunting. Della Dash suggested we assemble a study group, and I ended up leading two year-long groups of future bird biologists as we strove to qualify for our Cornell certifications. Those of us who succeeded became some of the 15,000 students from 65 countries who placed the certificate on our wall. In 2010 the book went out of print, and Cornell no longer supported the mail order class.
In 2013, after Jack Dumbacher had joined the GGBA Board, we embarked on a different approach to teaching bird ID and biology, offering our first Master Birding class at the California Academy of Sciences. Taught by Jack, Eddie Bartley and myself, with occasional guest lecturers, we are now completing our fourth year, each year with 20 registrants in the class. Although the class has evolved, much of it was based on Cornell’s Handbook.
A few weeks ago, the third edition arrived. Edited by Irby J. Lovette and John W. Fitzpatrick and published by John Wiley & Sons, Ltd., it is a thing of beauty.
Third edition of the Handbook of Bird Biology
With glossary and index it runs over 700 pages, and contains 15 chapters authored by 18 expert ornithologists. Five of the authors extensively revised their second edition contributions, while 13 contributed entirely new material. Many of the references in the new volume are post-2012, with some from 2016, covering recent advances in bird biology well. Also new to this edition are 1,150 color photographs, illustrations, and figures, adding much to the updated text. The second edition had a definite East Coast bias, with most examples coming from that area. The third edition approaches issues globally, picking illustrative examples from birdlife worldwide.
Illustration of how blue feathers come from the structure of keratin proteins, rather than pigments. From the Handbook of Bird Biology by Andrew Leach.
 
The Royal Flycatcher’s facial bristles help detect prey during aerial foraging, by Andrew Snyder.
Chapters cover Bird Classification, Evolution, Flight, Anatomy, and Physiology. Behavioral aspects include Food and Foraging, Mating and Social Behavior, Song, Breeding Biology and Migration.…