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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

BRUNSWICK, Ga. (AP) — A Georgia judge has denied bond for the white father and son charged with murder in the February slaying of Ahmaud Arbery.Superior Court Judge Timothy Walmsley said Friday that he's concerned Gregory McMichael and his adult son, Travis McMichael, took the law into their own hands and endangered neighbors when they pursued the 25-year-old Black man with guns and shot him in a residential street in February.Defense attorneys say the McMichaels had reason to suspect Arbery was a burglar and Travis McMichael was defending himself when he shot Arbery in the port city of Brunswick.During a hearing Thursday, prosecutors said Travis McMichael had previously used racial slurs in text messages and on social media.Prosecutors asked the suspect’s friend, Zachary Langford, on the witness stand about a text in which McMichael used a slur for Black people. At first, he said he didn’t recall receiving the message, but after reviewing a transcript of the exchange, he said “He was referring to a raccoon, I believe,” The Associated Press reports.Attorneys for the McMichaels have died any racist motives in the shooting.The McMichaels were not arrested until May, when the Georgia Bureau of Investigation stepped and charged them with murder and aggravated assault.There was mounting public pressure for justice in the case after video was released of the deadly incident. The case gained attention nationwide during the summer’s protests over racial injustice.The man who filmed the video, William Bryan, was also later arrested and charged with murder and criminal attempt to commit false imprisonment, according to The New York Times.In June, The Times says a grand jury returned an indictment with nine counts against all three men. Those charges include malice murder, four counts of felony murder, two counts of aggravated assault, false imprisonment and criminal attempt to commit false imprisonment. 1934

BONITA, Calif. (KGTV) -- Sweetwater Bike Park in Bonita is the first of its kind for San Diego County parks, and it was a long time in the making."As an organization, we have been advocating for over 10 years for this type of park in the county, so we're thrilled," says Susie Murphy, the Executive Director of the San Diego Mountain Biking Association.The park opened in January, and riders of all ages and levels showed up on two wheels."On opening day, I like to say the youngest rider was seventeen months old, and the oldest was seventy-four. It's for all ages, from tiny kids on their Strider bikes, up to teenagers from the neighborhood on their BMX bikes," Murphy says.And Murphy says she loves the design of the park. It comes with jumps, two flow trails, and a skills zone."Every day it puts a smile on my face," Murphy says. Unfortunately, soon after the park opened, it had to be shut down due to the COVID-19 pandemic. "We did not know what to expect, it was definitely a disappointment," added Murphy.The park was closed for a couple of months, but is now back open for business, but with a few rule changes."Right now we're only letting fifty people come in at a time," says Park Ranger Adair Flores. "They are required to wear a mask when they come in and they do have to stay six feet apart from each other. They can't group up in the gazebo areas when they are riding, and it's recommended they wear a mask, but you know, it's harder to breathe with it." 1482

BERLIN (AP) — German pharma giant Bayer says it’s paying up to .9 billion to settle a lawsuit over subsidiary Monsanto’s weedkiller Roundup.Monsanto has faced numerous lawsuits over claims it causes cancer.In a statement Wednesday, Bayer said it was also paying up .22 billion to settle two further cases, one involving PCB in water.The Leverkusen, Germany-based company said the Roundup settlement would “bring closure to approximately 75%” of the current 125,000 filed and unfiled claims.The company said the settlement also puts a mechanism in place to resolve potential future claims efficiently.It said the agreement is subject to approval by Judge Vince Chhabria of the U.S. District Court for the Northern District of California.“First and foremost, the Roundup settlement is the right action at the right time for Bayer to bring a long period of uncertainty to an end,” said Werner Baumann, Chief Executive Officer of Bayer. “It resolves most current claims and puts in place a clear mechanism to manage risks of potential future litigation. It is financially reasonable when viewed against the significant financial risks of continued, multi-year litigation and the related impacts to our reputation and to our business. The decision to resolve the Roundup litigation enables us to focus fully on the critical supply of healthcare and food. It will also return the conversation about the safety and utility of glyphosate-based herbicides to the scientific and regulatory arena and to the full body of science.” 1532

BOONE COUNTY, Ind. -- New jailhouse pictures that appear to glorify and praise the man accused of murdering Boone County Sheriff's Deputy Jacob Pickett have appeared on the internet."Outright despicable. It makes me sick to my stomach that this can reach social media," said Boone County Sheriff Mike Nielsen.The pictures show 21-year-old Anthony Baumgardt and his fellow inmates laughing and posing."He's not only celebrating with people in jail. I don't know if he is celebrating the crime, but it doesn't seem to bother him. That is what hurts me the most. That is what hurts people who have seen this," said Sheriff Nielsen.One image even describes Baumgardt as a "Hoosier Hero"."I don't like hearing that. It makes me uncomfortable. Because I don't know why anyone would call him a hero," said Sydnie Graves, Boone County resident."I'm kinda old school. It breaks my heart," said Mike Holt, Boone County resident.Baumgardt is behind bars in Hamilton County. According to the sheriff there, people visit inmates by video and they can share pictures with those they visit with."He has rights we have to honor like we have to honor with any other pre-trial inmate. We are gonna monitor the situation. Monitor Mr. Baumgardt's activities," said Hamilton County Sheriff Mike Bowen.Baumgardt's attorney, Allan Reid, told Scripps station WRTV in Indianapolis, "It is not mature, respectful behavior considering the tragic circumstances of this case. And I will talk to him about it."Baumgardt is being held without bond at the Hamilton County Jail. His next pre-trial hearing is May 16.READ | Anthony Baumgardt: "No remorse" for what happened to Deputy Pickett, man he's accused of shooting | Father of deputy shooting suspect says it "was a monster" who shot Deputy Pickett?| Court records detail Deputy Pickett suspects' criminal history  1900