Birds become nocturnal due to light pollution

A new study found that birds around the world are singing, on average, almost an hour longer due to light pollution. Researchers analyzed millions of bird song recordings, covering more than 500 bird species that are active during the day. Exposure to artificial light at night causes these birds to extend their activities beyond their natural schedule, altering their circadian cycles and causing them to start singing earlier and continue for longer. This phenomenon represents a significant change in bird behavior patterns on a global scale.