ITHACA, N.Y. -- Even after they have paired with a male, the female North American barn swallow still comparison-shops for sexual partners. And forget personality; the females judge males by their ...

New CU Boulder research shows that even with increased physical costs, female barn swallows prioritize the needs of their offspring over their own health The study is about songbirds, but reading ...

If a male barn swallow’s plumage is more attractive than that of other males, his mate is less likely to have furtive flings with other wooers, new research suggests. Even plumage changes during the ...

Add Yahoo as a preferred source to see more of our stories on Google. The most wide-spread members of the swallow family, barn swallows wing their way throughout the world, breeding generally in the ...

For female North American barn swallows, looking good pays healthy dividends. A new study conducted at the University of Colorado Boulder and involving Cornell University shows the outward appearance ...

Female birds sing. That is one conclusion of our 2020 study on one of the most abundant, widespread, well-studied bird species in the world: the barn swallow. Despite the well over 1,000 scientific ...

One warm and muggy morning on my walk, I notice swallows gathering on overhead power lines. The pair closest to me are northern rough-wings, and they are well into the throes of courtship: she, ...

A new study led by the University of Colorado at Boulder has shown the testosterone of male North American barn swallows skyrocketed early in the breeding season when their breast colors were ...

If you are a male barn swallow in the United States or the Mediterranean with dark red breast feathers, you're apt to wow potential mates. But if you have long outer tail feathers in the United States ...