The barn swallow gets its name because it often makes its nest on a rafter in a barn or shed, building it up of dabs of mud and lining it with soft feathers.
Before man built houses and barns, the barn swallows nested on cliff ledges or on sheltered tree branches.
The small, graceful swallow is one of our best-known birds. It has long, powerful wings and spends much of its time in flight looking for small flying insects, which it scoops up in its big mouth.
Its small feet are suited more for perching than for walking. Its long tail, which is often forked, is especially helpful in making sudden turns, as it pursues the insects.
Swallows usually return year after year to the same nesting sites, often to the same nests. Few signs of spring are more certain than the appearance of swallows.
But the popular idea that swallows may return to a certain place on the same day each spring is just an old folk tale.
The day of their spring arrival depends on the abundance of insects in the air, which in turn depends on warm weather. – Dick Rogers