For hundreds of years, barn swallows have signaled the coming of spring. In many cultures, it is considered good luck to have barn swallows build nests on a person’s property. Artifacts depicting barn ...

So how did humans start building nest boxes? As they started building structures, certain species like the House Sparrow, House Martin, Barn Swallow and Barn Owl took to human-built structures to ...

From purple martins to barn swallows, find out how to spot and identify 8 members of the swallow bird family during summer.