A new study shows the outward appearance of female barn swallows, specifically the hue of their chestnut-colored breast feathers, has an influence on their physiological health. A new study conducted ...

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 ...

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 ...

In the world of birds, where fancy can be as fleeting as flight, the color of the bird apparently has a profound effect on more than just its image. A new study of barn swallows reveals it also ...

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 ...

If you’ve seen a petite bird with cobalt blue feathers, a rusty orange throat, tawny breast and a long, deeply-forked tail lately, it was likely a barn swallow. Barn swallows have returned to Humboldt ...

Here is a typical conversation that I have with fellow birders when I’m trying to bird for swallows. “There’s a swallow. There it goes. Here it comes. I wish it would perch someplace.” Swallows fly a ...

The most wide-spread members of the swallow family, barn swallows wing their way throughout the world, breeding generally in the Northern Hemisphere and wintering throughout most of the Southern ...

WASHINGTON (Reuters) - Dying the red breast feathers of barn swallows not only won the birds more mates -- it made their testosterone levels shoot up, U.S. researchers reported on Monday. The dye ...

We’ve all got our favorite signs of the changing seasons: first trillium, first crocus, first evening peeper chorus, first gelatinous mass of frogs’ eggs in a vernal pool. One of mine is the sensation ...

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 ...