Birds are being kept up later because of bright lights, and it's proving to be a big problem. Scientists looked at over 180 million bird calls and compared them with satellite photos of nighttime ...

Birds that sing at night: Most birds stop singing when the sun goes down, but for some, the concert is just starting. Hearing birds sing at night is an interesting and growing experience. We usually ...

Every spring and fall, something extraordinary happens in the sky. Without most people ever noticing, billions of birds take flight under cover of darkness. These nocturnal travelers are mostly small ...