In light-polluted landscapes, birds' singing time is an average of 50 minutes longer per day. It's still unclear if this hurts bird health or helps.

Millions of audio recordings of hundreds of bird species have revealed that artificial light is making the birds wake up ...

A worldwide study of more than 4 million birdcalls has found that birds are singing for nearly an hour longer each day ...

Birds that are active during the day sing later into the night in places with significant light pollution, according to research by a Southern Illinois University Carbondale professor and his ...