Some birds have always called nocturnally, but other species are relative newcomers to the nighttime music scene, specifically in urban areas. Birds such as European Robins often sing well into the night. Scientists are studying what environmental cues might lead to this behavior. While artificial light could be a factor, recent studies suggest that some birds may be avoiding daytime city noise by singing nocturnally.
Podden och tillhörande omslagsbild på den här sidan tillhör
BirdNote. Innehållet i podden är skapat av BirdNote och inte av,
eller tillsammans med, Poddtoppen.