Birds sing the most about an hour before dawn, when the air is at its stillest. Theoretically, this enables sounds to travel farther, making song up to 20 times more effective than if sung at midday.

Not all birds sing, but those that do — some several thousand species — do it a lot. All over the world, as soon as light filters over the horizon, songbirds launch their serenades. They sing to ...

When you open a window at midday and hear birds singing, it can feel like a small gift. In many cases, it is also a clue about what your local environment is doing right, because birds usually invest ...

The sound of birds singing is synonymous with spring. As delightful as the tweets and chirps may be, these songs are actually tied to the birds’ survival — and a combination of day length, sunlight ...

Scientists are finding more evidence that birdsong parallels human-made music. Credit...Fiona Carswell Supported by By Marlowe Starling When a bird sings, you may think you’re hearing music. But are ...