New research reveals why barn swallows are declining — and how our barns may be part of both the problem and the solution.

Every fall, the skies of the northeastern United States fill with warblers, barn swallows and other birds heading south to warmer climates. The journeys are long—often spanning continents—and birds ...

Estonia and Austria, two European countries, have named this species their national bird. George Grinnell played a huge role in early conservation. After he became editor of Forest and Stream magazine ...

Swallows infected with parasites move less and in smaller ranges than healthy ones—with detrimental effects on their foraging success and their survival. As a result, infected individuals foraged in ...

Swallows, people believed, overwinter in the mud beneath lakes and ponds and their associated marshes. Come spring, the swallows emerge from the mud, clean their feathers as they rise through the ...