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Being home more during the pandemic, and with less traffic on the roads from stay-at-home orders, many people have heard more bird calls and the sounds of nature in urban areas. Scientists now say at least one bird species has been able to adjust their bird song because of the lack of human noise to compete with.Researchers have been studying the white-crowned sparrows in and around San Francisco for more than two decades. They compare their songs in recent years with recordings made in the 1970s.They found as traffic levels increased over the decades, the lowest frequencies of the sparrows’ song rose. This allowed their song to be heard above the low hum of vehicles. The top frequencies remained the same, so the total frequency bandwidth of their communication was narrowed.Degrading their songs this way, and limiting their range, makes them less effective at deterring rivals, attracting mates, or hearing their own chicks, according to researchers. In noisy environments, birds have to sing louder, which research has shown can result in stress and can speed up a bird’s aging and disrupt their metabolisms.When stay-at-home orders and coronavirus pandemic safety measures were put in place in March, the lead researcher, Elizabeth Derryberry, remembers seeing an image of the Golden Gate Bridge in San Francisco completely empty of cars or humans. She wondered how the sparrows were responding.They compared audio recordings of the bird songs from spring 2015 and 2016, to those taken this spring. The recordings were made in a variety of urban and rural locations around the greater San Francisco area.“We found that birds sung at lower minimum frequencies, achieving greater bandwidth songs in newly open acoustic space. An increase in frequency bandwidth results in the transmission of more information and greater vocal performance,” the study states.The samples taken in 2020 revealed the white-crowned sparrows had changed their tune, so-to-speak, and were singing softer and using a wider range of frequencies. They also were able to communicate twice as far as previous recordings.“This doubling in communication distance could elevate fitness by reducing territorial conflicts and increasing mating potential,” researchers stated.Researchers also say this explains why more people report hearing birds during the pandemic. Since the songs are traveling farther distances, humans are able to hear more of them.They also say the changes in the birds’ songs were more pronounced in urban areas compared to the rural location samples. This would make sense, they say, because the traffic noise did not change as drastically in the rural locations during the pandemic.“Our findings indicate that songbirds like white-crowned sparrows have a striking capacity to exploit newly empty soundscapes following acute but ephemeral amelioration of noise pollution, suggesting that lasting remediation might engender even more promising outcomes, such as demographic recovery and higher species diversity in urban areas,” they concluded. 3055

Breaking news update, posted at 2:19 p.m. ET] There were no signs of foul play in the death of a US Centers for Disease Control and Prevention epidemiologist, said Fulton County Chief Medical Examiner Dr. Jan Gorniak.The preliminary cause of death is drowning, Gorniak told reporters at a Thursday press conference, but the manner of death has not been determined. The investigation is ongoing.[Previous story, published at 1:46 p.m. ET]A body recovered this week from a river in Atlanta has been identified as the US Centers for Disease Control and Prevention epidemiologist who vanished in February, Atlanta Police Department spokesman Carlos Campos said Thursday.The remains of Timothy Cunningham, 35, were found Tuesday in the Chattahoochee River in northwest Atlanta, Campos said.A news conference is set for 2 p.m. ET Thursday. The Atlanta Police Department, the Fulton County Medical Examiner's Office and the Atlanta Fire Rescue Department will participate.Cunningham, of Atlanta, was last seen February 12, shortly after a CDC supervisor told him why he was being passed over for a promotion, police have said.The disappearance prompted a high-profile police search and a ,000 reward for clues. As days went on, internet rumors circulated that Cunningham's disappearance was tied to his alleged role as a flu vaccine whistle-blower. The rumors were debunked by police and his family.The CDC's director in mid-March issued a statement denying that Cunningham hadn't gotten a promotion and noting that he'd been promoted in July. Atlanta police responded by doubling down on their version of events, citing the CDC as the source of the information.The case perplexed investigators because Cunningham's keys, cell phone, credit cards, debit cards, wallet and all forms of identification were found in his house, along with his beloved dog.In announcing that his body had been found, authorities offered no hint about why he disappeared.Co-workers told authorities that Cunningham had been "obviously disappointed" on the morning of February 12, when he learned why he wasn't getting the promotion he'd hoped for, police have said. He left work quickly, saying he felt ill, they said.Earlier that morning, at 5:21 a.m., Cunningham's mother had received a text message from him, she has said. "Are you awake?" her son asked. But her phone was on silent mode. "I wish I had that opportunity to answer that text," she said later.Cunningham also called his mother at 9:12 a.m. that day, but she did not answer, Atlanta police have said. He did not leave a message.  2582

BOSTON (AP) — A former California insurance executive has been sentenced to six months in prison for paying 0,000 to get his son and daughter admitted to the University of Southern California as fake athletic recruits.Toby MacFarlane was sentenced in Boston’s federal court Wednesday after pleading guilty to a single count of fraud and conspiracy in June. His prison sentence is the longest in the case so far.Authorities say MacFarlane paid 0,000 to get his daughter into USC as a fake soccer star in 2014, and then paid 0,000 to get his son admitted as a fake basketball recruit in 2017.RELATED: San Diego parent Toby MacFarlane pleads guilty in 'Operation Varsity Blues'Prosecutors requested a year in prison. The 56-year-old from Del Mar, California, has apologized and said he wrongly agreed to participate in the scheme as his marriage was falling apart. 878

BEIJING (AP) — The U.S. says it has ordered China to close its consulate in Houston “to protect American intellectual property" and the private information of Americans.China is strongly condemning the move, which comes at a time of rising tensions between the world’s two largest economies.A foreign ministry spokesperson called it “an outrageous and unjustified move that will sabotage relations between the two countries.”He warned of firm countermeasures if the U.S. does not reverse its decision, which he said the consulate was informed of on Tuesday.Media reports in Houston said authorities responded to reports of a fire at the consulate.Witnesses said people were burning paper in what appeared to be trash cans, according to the Houston Chronicle.The city’s fire chief, Samuel Pe?a, told the newspaper that although it’s illegal to have open burning in Houston, his crews couldn’t access the property because it’s a sovereign country. 953

BAY VILLAGE, Ohio — A priest in Bay Village says someone called police about a homeless person sleeping on a bench. It turns out it was actually a statue of Jesus.The sculpture was created by Timothy Schmalz, and depicts Jesus wrapped in a blanket and lying on a bench.Within 20 minutes of the sculpture's installation at St. Barnabas Episcopal Church, police were called, according to the church's pastor, Alex Martin. He tweeted that an officer told him someone had called to report a homeless person sleeping on a park bench.Scripps station WEWS in Cleveland reached out to Bay Village police, who have not yet responded to a request for more information.According to the church's website, because Bay Village isn't impacted much by poverty, the statue is meant to remind residents how serious homelessness is in the world.The temporary installment will be on display until Dec. 1.The church is currently raising money to try and help the homeless. Martin says those interested in donating can do so here. 1016

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