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.

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 ...

Birds don't just sing for beauty, their voices carry messages, warnings, and even regional dialects that reveal a hidden world of communication. Bird sounds offer insight into how intelligent and ...