Seagulls are everywhere in the Bay Area — flocking to Giant's games in San Francisco and crowding South Bay salt ponds. But are they actually native? Once seasonal visitors from Mono Lake, they've recently become year-round residents. We get to the bottom of this gull invasion.

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This story was reported by Pauline Bartolone. Bay Curious is made by Katrina Schwartz, Gabriela Glueck and Christopher Beale. Additional support from Olivia Allen-Price, Jen Chien, Katie Sprenger, Maha Sanad, Alana Walker, Ethan Toven-Lindsey and everyone on Team KQED.

Over the past 40 years, Afghans have steadily immigrated to the East Bay town of Fremont, hoping to start new lives close to others who share their language and culture. We trace four waves of immigration and check in with Afghans who've chosen to settle in Fremont.

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This story was reported by Asal Ehsanipour. Bay Curious is made by Katrina Schwartz, Gabriela Glueck and Christopher Beale. Additional support from Olivia Allen-Price, Jen Chien, Katie Sprenger, Maha Sanad, Ethan Toven-Lindsay and everyone on Team KQED.

Julia Morgan, the pioneering female architect, was born in San Francisco, raised in Oakland and educated at UC Berkeley and the the Ecole des Beaux-Arts in Paris. She designed over 700 buildings, many of them in the Bay Area, and had a huge impact on the field of architecture. We dig into her life and legacy.

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This story was produced by Brandi Howell. Bay Curious is made by Katrina Schwartz, Gabriela Glueck and Christopher Beale. Additional support from Olivia Allen-Price, Jen Chien, Katie Sprenger, Maha Sanad and everyone on Team KQED.

Nearly one in three Daly City residents identify as Filipino, according to 2019 Census data. Bay Curious listener Ricky Tjandra wondered what makes this town just south of San Francisco such an international hub of Filipino life. We dig into more than a hundred years of history between the U.S and the Philippines and talk to current residents of Daly City.

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This story was reported by Amanda Stupi. Bay Curious is made by Katrina Schwartz, Gabriela Glueck and Christopher Beale. Additional support from Olivia Allen-Price, Jen Chien, Katie Sprenger, Maha Sanad, Ethan Toven-Lindsay and everyone on Team KQED.

Alameda is the second most populous county in the Bay Area, after Santa Clara. Oakland is the biggest city, but the county stretches all the way out to Livermore in the east and Fremont in the south. It’s a big swath of land and about half of it is unincorporated, including two areas known as Cherryland and Ashland. Bay Curious listener Sam Hopkins wondered what it means for an area to be unincorporated and the history of these two communities.

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This story was reported by Brian Krans. Bay Curious is made by Katrina Schwartz, Gabriela Glueck and Christopher Beale. Additional support from Olivia Allen-Price, Jen Chien, Katie Sprenger, Maha Sanad, Ethan Toven-Lindsay and everyone on Team KQED.

Train travel isn't as common as it used to be, but there's one Amtrak route that train enthusiasts love because it's so beautiful -- the California Zephyr. The route starts in Emeryville, runs through the California delta, stops in Sacramento and then heads and over the Sierra Nevada mountains, eventually terminating in Chicago. This ride is on a lot of people's bucket list for good reason. But the California railroads also played an important role in the food history of the state and in the Civil Rights Movement.

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This story was reported by Lisa Morehouse. It was edited by Victoria Mauleon and produced by Suzie Racho, Brendan Willard and Sasha Khokha. Bay Curious is made by Katrina Schwartz, Gabriela Glueck and Christopher Beale. Additional support from Olivia Allen-Price, Jen Chien, Katie Sprenger, Maha Sanad and everyone on Team KQED.

The island of Alameda has produced some great baseball players. Hall of Fame hitter Willie Stargell even has a street named after him! Some of those ballplayers were Japanese American. In the years between World War I and World War II, the Alameda Taiiku-Kai thrived with great players like Sai Tawata leading the team and the community. Bay Curious listener Sam Hopkins saw a plaque commemorating the team's home plate and wanted to learn more about the team's history.

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Special thanks to the Japanese American National Museum for use of the Topaz prison camp clip. That documentary was a gift of Dave Tatsuno, in Memory of Walter Honderich.

This story was reported by Brian Watt. Bay Curious is made by Katrina Schwartz, Gabriela Glueck and Christopher Beale. Additional support from Olivia Allen-Price, Jen Chien, Katie Sprenger, Maha Sanad, Alana Walker, Holly Kernan and everyone on Team KQED.

The Transamerica Pyramid, located in downtown San Francisco, is a skyline staple. But when it was proposed, people hated the idea of a towering symbol of capitalism so close to neighborhoods like North Beach and Chinatown. Turns out the block where the pyramid stands has a long and storied history. We dig into all that, as well as how public perception of the pyramid's place in the skyline has changed over the past 50 years.

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This story was reported by Carly Severn. Bay Curious is made by Katrina Schwartz, Gabriela Glueck and Christopher Beale. Additional support from Olivia Allen-Price, Jen Chien, Katie Sprenger, Maha Sanad, Alana Walker, Holly Kernan and everyone on Team KQED.

On a Daly City beach just south of Fort Funston there's a large tunnel carved into the cliff. Bay Curious listener Francisco Alvarado noticed it one day while walking his chihuahua, Little Bean, down the beach. The tunnel is large enough for a person to stand up and several feet wide, so of course Francisco's mind started racing. What could this mysterious tunnel be? Is it a remnant of life long ago? Or could it be something as mundane as a drain outlet? We head to Phillip Burton Memorial Beach, as it's technically called, with a geologist to find some answers.

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This story was reported by Katrina Schwartz. Bay Curious is made by Katrina Schwartz, Gabriela Glueck and Christopher Beale. Additional support from Olivia Allen-Price, Jen Chien, Katie Sprenger, Maha Sanad, Alana Walker, Holly Kernan and everyone on Team KQED.

Some of the biggest names in Silicon Valley have been popping up in political circles. Elon Musk, CEO of Tesla, has been advising President Trump; billionaire Peter Thiel introduced JD Vance to the president; and many more less well known folks are poised to take on positions of power in the new administration. So who are all these people and how are they connected? Bay Curious listener Anna Mistele has heard they're all part of something called the PayPal Mafia. She wants to know what that is and the extent of their influence in Silicon Valley and beyond.

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This story was reported by Morgan Sung and edited by Chris Egusa. Bay Curious is made by Katrina Schwartz, Gabriela Glueck and Christopher Beale. Additional support from Maya Cueva, Olivia Allen-Price, Jen Chien, Katie Sprenger, Maha Sanad, Alana Walker, Holly Kernan and everyone on Team KQED.