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Wildlife mystery: Why are gray whales swimming into San Francisco Bay in increasing numbers?

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Wildlife mystery: Why are gray whales swimming into San Francisco Bay in increasing numbers?


Credit: Unsplash/CC0 Public Domain

Gray whales have been veering off their normal routes along the West Coast and swimming under the Golden Gate Bridge into San Francisco Bay in unprecedented numbers.

Using thousands of photographs of distinctive markings on the whales’ backs to identify them, marine scientists have confirmed that at least 71 different gray whales—and possibly 84 or more—swam into the bay between 2018 and 2023, with some staying for more than two months, raising their risk of being hit by cargo ships, oil tankers or other large vessels.

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From 2010 to 2017, only about one or two of the giant marine mammals came into the bay every year. Last year, however, there were at least 16, and in 2019 there were at least 21.

“We think it has a lot to do with the fact that the whales haven’t been getting enough food,” said Bill Keener, a biologist with The Marine Mammal Center, a non-profit group in Sausalito. “They may be weak and resting for a while, or they looking for an alternative food source.”

Some are malnourished, he said.

From 2019 to 2023, 22 gray whales were found dead in or near San Francisco Bay, according to data from The Marine Mammal Center, the California Academy of Sciences and public agencies. Of those, 14 died from unknown causes. Researchers performed studies, called necropsies, on nine of the whales. Six died from malnourishment. Three died from a collision with a ship.

Over the past four years, dead gray whales have been found inside San Francisco Bay off Angel Island, and near Richmond, Rodeo, Hercules, San Leandro, Mountain View, the Port of Oakland, Tiburon, the Berkeley Marina and Martinez.

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“They aren’t just near the Golden Gate,” said Keener, who said a slower speed limit for big ships in the bay may be needed. “They are way into the bay, past Angel Island, down to Treasure Island. There’s a lot of ship traffic there.”

Wayward whales have inspired public interest for years.

One lost humpback, nicknamed Humphrey, gained national attention in 1985 and became the subject of children’s books, songs and a movie—drawing crowds of onlookers with binoculars—when he swam into the bay. Humphrey meandered up the Delta to sloughs 25 miles south of Sacramento, staying 26 days before finally returning to the Pacific Ocean as researchers played whale songs from speakers off boats to lure him west.

In 2007, a mother humpback and her calf, nicknamed “Delta and Dawn,” swam into the bay and ventured as far up the Delta as Rio Vista before scientists in boats coaxed them back into the open ocean 10 days later.

There was also a jump in the number of humpback whales that swam under the Golden Gate Bridge pursuing anchovies in from 2016 to 2018. They stayed only a few days each.

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But the latest trend with gray whales seems different, researchers say. It could be a sign of stress in the wider population.

The pattern comes amid a big drop in the gray whale numbers off the Pacific Coast in recent years.

Once hunted by whaling ships in the 1800s for their oil until there were only about 1,000 or 2,000 individuals left, gray whales were protected in 1972 when President Nixon signed the Marine Mammal Protection Act. The last whaling company in the United States, the Del Monte Fishing Company, operated at Point Molate in Richmond. It made Kal-Kan dog food out of whales that its crews shot with mechanized harpoon cannons. The company closed in December 1971 as the law was about to take effect.

After whaling was banned in the U.S., numbers of gray whales increased. By 1994, after they reached a healthy population, the Clinton administration removed them from the Endangered Species Act list in what is still considered one of the nation’s major wildlife success stories.

Their population jumped to 27,000 by 2016, according to estimates from NOAA, the National Oceanic and Atmospheric Administration. But then it fell by at least one third by 2022. Hundreds of malnourished whales began to wash up on beaches in Alaska, Washington, Oregon, California and Mexico. Nobody knew why.

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Researchers said the die-off from 2018 to 2023, which NOAA called an “unusual mortality event,” was likely due to a shortage of food in the Arctic linked to changes in the amount of sea ice, wind patterns and other factors. Whales eat 3,000 pounds or more of food a day, preferring small, shrimp-like crustaceans known as amphipods, along with worms and other tiny creatures that they scoop from the sea floor.

Last year, gray whale numbers began to rebound to as many as 21,000. NOAA declared an end to the “unusual mortality event” in November. Scientists are watching carefully to see if the change is temporary or permanent.

The roller coaster population—and weird detours into San Francisco Bay—could be related to climate change, or it could be part of the gray whale’s natural population fluctuations, said John Calambokidis, a research biologist with Cascadia Research, in Olympia, Washington.

“What is a natural cycle?” he said. “Is this normal? Or something unusual? The ecosystem in the Arctic has changed very rapidly. That’s one reason this has scientists’ attention.”

One thing is clear: The gray whales coming into San Francisco Bay are heading north as part of their annual migration from Baja, Mexico where they mate and breed, and turning right under the Golden Gate Bridge instead of continuing north to Alaska where they stock up on food during the summer months.

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A lot is known about the latest trend because one researcher, Josephine Slaathaug, of the Marine Mammal Center, painstakingly sorted through more than 11,000 photographs of gray whales in San Francisco Bay last year. She built a database, identifying individual whales from photos taken on whale watching boats, the shoreline, and the center’s boats. She showed the animals are most common in March and April, and stayed in the bay between 13 and 75 days.

Slaathaug, a masters student at Sonoma State University, won a prestigious fellowship in April from the National Science Foundation as she expands the study in the coming years. One key question: Will the number of gray whales in the bay go down if their food in the Arctic recovers, and the West Coast population increases?

“We don’t understand all the drivers,” she said. “We have preliminary data. But we do know that with all the ships, the bay is not a very safe place for the whales.”

2024 MediaNews Group, Inc. Distributed by Tribune Content Agency, LLC.

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San Francisco, CA

Celebrated San Francisco historic landmark, the Huntington Hotel officially reopens

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Celebrated San Francisco historic landmark, the Huntington Hotel officially reopens


SAN FRANCISCO (KGO) — First opened as apartments in 1922 and converted into a hotel two years later, the Huntington was once a playground for socialites and Hollywood stars.

It shut its doors in 2020 due to the COVID-19 pandemic and remained shuttered until this week, following new owners and a million-dollar, top-to-bottom renovation.

A ribbon-cutting ceremony was held for The Huntington Hotel in San Francisco’s Nob Hill neighborhood Monday.

The hotel officially reopened on Sunday.

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Mayor Daniel Lurie attended the celebration for the hotel on California Street.

“This is another sign that San Francisco is on the rise, when you have major institutions and major hotels reopening,” Lurie said. “We’re seeing it in Union Square. We’re seeing it now up here on Nob Hill. This is an exciting moment for San Francisco.”

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The hotel, known for its iconic sign, will be restoring the landmark sign to its former glory.

Many say it’s a symbol of what’s going on in San Francisco.

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“It came to symbolize San Francisco’s decline during COVID when it shut and it now, I think, symbolizes San Francisco’s rebirth,” said Greg Flynn, Flynn Group Founder, Chairman, and CEO. “It’s sort of the perfect symbol of it because it’s coming back better than it ever was.”

Alex Bastian, President and CEO of the Hotel Council of San Francisco, said hotel occupancy rates are up in 2024.

“Our data team crunched the numbers, and the four-week rolling hotel occupancy rate for San Francisco Bay Area hotels is 55.1 percent as of January 17 of this year. Compare that to January 17 of 2021, during the pandemi,c when it was 13.1 percent.”

Of course, the Super Bowl helped.

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Here’s what Super Bowl LX visitors are saying about San Francisco

“There’s no marketing campaign better than what we achieved as San Franciscans,” Bastian said. “The mayor and his team really elevated the game. They did an incredible job. We are so fortunate, as a city, because so many came here and they left their hearts here in San Francisco.”

Eyewitness News wasn’t allowed to gather video of the hotel’s features, but the hotel provided renderings of a sample room.

Matthew de Quillien, The Huntington Hotel General Manager, said the hotel has 143 rooms, many of them suites. Also, the Nob Hill Spa, Arabella’s Cocktail Salo,n and a reopening of The Big Four Restaurant, featuring its famous chicken pot pie.

“Our owner was able to find the original recipe from the 70’s and we remastered it and we’re … serving it to our guests,” de Quillien said.

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He said rates range from $600 a night to $7,000 a night for its Presidential suite.

The restaurant opens to the public on March 17.


If you’re on the ABC7 News app, click here to watch live

Copyright © 2026 KGO-TV. All Rights Reserved.

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San Francisco, CA

Vigil held for 2-year-old girl killed in SF Mission Bay crash

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Vigil held for 2-year-old girl killed in SF Mission Bay crash


Walk SF and Families for Safe Streets held a vigil Monday evening to honor a 2-year-old girl who was struck and killed by a driver Friday night in San Francisco’s Mission Bay neighborhood.

The crash happened just before 9 p.m. at Fourth and Channel streets near Oracle Park. Police said the child’s mother was also injured and taken to a hospital with non-life-threatening injuries. The driver remained at the scene, and authorities said drugs or alcohol are not believed to be factors.

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Community heartbroken

Community members gathered at the intersection Monday to light candles and lay flowers. Among them was the Howard family.

“We’re just heartbroken and sad,” said Hidelisa Howard.

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“I was thinking about heartbroken parents, someone who cannot get their daughter back,” said John Howard.

The intersection is designated as part of San Francisco’s 2022 High Injury Network, identifying streets with the highest concentration of severe and fatal traffic crashes. Speed cameras were recently installed in the surrounding neighborhood.

Jodie Medeiros, executive director of Walk SF, called the crash a tragedy, noting a previous fatal collision involving a child at Fourth and King streets several years ago.

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Traffic intensifies

Parents in the area said traffic has intensified with nearby events and development.

“We love having people here in the neighborhood, and it’s brought a lot of life to the area,” said Hidelisa Howard, who lives nearby. “But at the same time, we have people coming in from out of the area. They’re not familiar with the streets, they’re running the lights, they’re running the crosswalks.”

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District 6 Supervisor Matt Dorsey said the intersection has been problematic.

“Sometimes people go too fast. I don’t know that this was the issue here, but we need to do everything we can to make our neighborhoods and our streets safer,” Dorsey said.

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On Monday, crews with the SFMTA repainted crosswalks and re-timed traffic signals at the intersection.

“It just feels like there’s so many young children in this neighborhood that there should be improvements made to the way that the traffic flows around here,” said Aanisha Jain, a San Francisco resident.

 

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Yes, an $8 Burger Exists in Downtown San Francisco

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Yes, an  Burger Exists in Downtown San Francisco


Sometimes life requires an easy hang, without the need for reservations and dressing up, and preferably with food that’s easy to rally folks behind. The newish Hamburguesa Bar is just such a place, opening in December 2025 and serving a tight food menu of smash and tavern burgers (made with beef ground in-house), along with hand-cut duck fat fries, poutine, and Caesar salad. The best part? Nothing here costs more than $20. Seriously, this spot has so much going for it, including solid cocktails and boozy shakes. It’s become a homing beacon for post-work hangs, judging by a recent weekday crowd.

Hamburguesa Bar’s drinks are the epitome of unfussy: Cocktail standards, four beers on tap, two choices of wine (red or white), boozy and non-boozy shakes, plus 21 beers by the can or bottle. Standards on the cocktail menu are just that, a list of drinks you’ve heard before — such as an Old Fashioned, daiquiri, gin or vodka martini, or Harvey Wallbanger — with no special tinctures or fat-washed liquors to speak of (that we know of, at least). I’m typically split on whether boozy shakes are ever worth it, but the Fruity Pebbles option ($14) makes a convincing case, mixed with a just-right amount of vodka and some cereal bits. (I’ll leave the more adventurous Cinnamon Toast shake made with Fireball to others with more positive experiences with that liquor.)

Downtown and SoMa has a reputation for restaurants closing early, but Hamburguesa Bar keeps later hours, closing at midnight from Monday through Saturday (closed Sundays). It’s also open for lunch at noon during those days, with the exception of Saturdays when it opens at 5 p.m.



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