Ithaca, NY— New research published today in the journal Philosophical Transactions of the Royal Society B finds that territorial behavior and diet help explain why some birds sing more often at dawn.

The dawn chorus of birdsong has inspired poets and nature lovers for thousands of years, but the reason why birds all over the world start the day this way is an enduring mystery. Now, a series of ...

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 ...