This is a preview. Log in through your library . Abstract In altricial birds, asynchronous hatching often results in a size hierarchy among nestlings. However, laying order and hatching order may ...

After showing an adult barn swallow at its nest last week, I couldn’t resist showing a nestling from the same nest. Naked and blind at the time of hatching, a baby barn swallow quickly grows fluffy ...

Barn swallows, seen here, can be distinguished from cliff swallows by their forked tails. Michele Roest Special to The Cambrian The swallows are back in town! One of the many joyful sights this time ...

Whether you love watching barn swallows up close or dread the mess they leave behind, a Texas A&M AgriLife Extension Service expert encourages you to take preventative action before the birds begin ...

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 ...

Barn swallows’ nests are delaying work on the Pawnee Street Bridge. Courtesy of U.S. Fish and Wildlife Service A $3 million project to reconstruct the Pawnee Street Bridge has been put on hold for ...