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 ...

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 ...

Claim to fame: Thanks to the abundance of barns, old silos, bridges and other human-built structures, barn swallows have become frequent sights in Missouri and elsewhere across much of the United ...

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 ...

BOULDER, Colorado – North American barn swallows, which are widespread throughout Colorado, outperform their peers in reproduction by maintaining a positive balance of antioxidants, according to a new ...

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 ...

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 ...