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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

Bill Cosby's sentencing hearing is set for September 24 and 25, according to a court order from Judge Steven O'Neill.Cosby was found guilty last month of three counts of aggravated indecent assault for drugging and sexually assaulting Andrea Constand at his home in a Philadelphia suburb in 2004.The 80-year-old comedian faces up to 10 years in prison on each count, although the actual sentence is likely to be much shorter."He was convicted of three counts of (indecent assault), so technically that would be up to 30 years," Montgomery County District Attorney Kevin Steele said after the verdict. "However, we have to look at a merger of those counts to determine what the final maximum will be."Some legal experts have said they do not think Cosby will spend any time behind bars. His defense team has said it will appeal the guilty verdict, and it is possible that O'Neill will allow Cosby to remain on house arrest until that appeal is resolved.For now, Cosby is not permitted to leave his Pennsylvania home. If he does leave the state for another home, it would have to be arranged ahead of time, and he would have to wear a GPS monitoring device, the judge ruled.Janice Baker-Kinney, who testified that Cosby drugged and raped her in 1982, said he should spend time in prison."I believe that it's essential he spend time in jail, and it wouldn't break my heart to see him spend the rest of his life in jail," Baker-Kinney said after the verdict.In general, judges can take any number of factors into account when issuing a sentence. Cosby's age, his health, the philanthropic work he's done over the last several decades and his lack of prior criminal convictions are all likely to be considered in deciding the sentence.Cosby's guilty verdict was the first criminal conviction of a high-profile celebrity since the rise of the #MeToo movement, which has forced a public reckoning with influential men accused of abusing their power.  1956

BALTIMORE — The U.S. has now topped 19 million coronavirus cases since the pandemic began, data compiled by Johns Hopkins University shows.America exceeded that mark on Sunday, just six days after it reached 18 million. The nation’s case numbers have more than doubled in less than two months.COVID-19 deaths in the U.S. also have been rising, and now total more than 332,000. That’s more than one death for every 1,000 Americans. The U.S. population as of Saturday was about 331 million, according to the U.S. Census Bureau.The United States accounts for about 4% of the world’s population, but close to 24% of its total coronavirus cases and 19% of its COVID-19 deaths. Health experts believe many cases have gone unreported, however, both in America and internationally. 781

BONITA, Calif. (KGTV) - A pursuit that ended at a South Bay apartment complex Thursday led to the arrest of a suspect inside a home.Robert Perez, 26, was seen leaving the scene of a domestic violence incident at a Lemon Grove apartment complex at 10:30 a.m., San Diego County Sheriff's deputies said.Deputies tried to pull over Perez as he drove away but he refused to stop, said officials. Perez began driving more than 100 miles an hour on freeways including SR-94 and SR-54, according to deputies.Perez parked his car in a carport at 2920 Briarwood Road and ran to an apartment on Plaza Mercia in Bonita. Deputies said Perez initially kept the resident of the apartment from leaving, but the person eventually ran outside.Perez was taken into custody inside the apartment. No one was hurt.Deputies did not release details about the domestic violence incident. 875

Before your food makes it to your table, or even to the grocery store, it starts here in farms across America. It's planted, grown, and picked by farmworkers."We would typically work from 5 [a.m.] to anywhere like 10, 10:30 at night, Monday through Sunday," said former farm worker Monse Gonzalez.Gonzalez grew up near the farm where she worked in northern Colorado. But, many of her former co-workers are migrant workers from Mexico on H-2A visas for the growing season, usually April through October."I don’t think they really realize how important they are to everybody else," said Gonzalez.Which is why it’s vital they stay healthy.Deb Salazar runs a mobile health unit through Salud Health Systems. Three days a week, the unit travels to different farms in the north Denver area."Without us, a lot of these folks wouldn’t have the opportunities to see anybody who’s medical. And also, because we go to them, they don’t have to miss work," said Salazar.The mobile unit provides a place for the migrant workers to get screened for diabetes, high or low blood pressure, get lab work done, and even see a medical provider for free through a federal grant."If one of their workers gets sick, it’s going to spread super quick, because they work in such close contact. And if they’re out, we’re not going to have any food," said Gonzalez."I don’t think most people realize that agriculture is the backbone of this country," said Salazar. "If we didn’t have a program to take care of the workers, then agriculture would fall, and the country would fall as well."The workers labor from sun up to sundown, making sure our food gets from the ground to the grocery store."I feel like to them, it’s the job that puts food on their family’s table," said Gonzalez.And, the tables of families all across America. 1809