Millions of birds pass through our yards during their bi-annual migrations, but they face an invisible killer along the way: glass windows. In the US alone, an estimated one billion birds die each ...

Birds' alarm calls serve both to alert other birds to danger and to warn off predators. And some birds can pull a ventriloquist's trick, singing from the side of their mouths, according to a UC Davis ...

Koni Sundquist of Duluth called Thursday to say she had heard her first white-throated sparrow call of the season. For many, that pure, high-pitched call -- "Old Sam Peabody, Peabody, Peabody" -- is ...