From Barns to Bridges

Traveling over the 13th Street bridge into Augusta or clicking along I-20, are you aware of a fork-tailed bird gracefully skimming over the new golf course in North Augusta or over the fields and meadows along I-20? Have you noticed that he darts under bridges, probably fluttering about and checking out last year's nest sites?

Twenty-five years or more ago the barn swallow was only an early spring transient through this area. It nested from the piedmont areas of Georgia and South Carolina and north to Canada and Alaska.

Before this country was settled, the barn swallow nested in caves and on rocky cliffs. The early settlers began to change the land to a rural environment with barns and sheds for cattle and for grain storage. This little metallic blue swallow changed the site of his pad quickly, preferring to plaster his nest on the beams and shelves of such buildings.

Barn swallows are people-loving birds like purple martins. They like to build around houses and dilapidated barns. Though barns are decreasing today, we can lure these swallows to build near us by supplying the needs for a nest site, if we live in the right habitat.

A two-by-four joist, rough, not planed, nailed to the outside of a building, flat, wide side against the wall and placed well up under the eaves with about five inches of clearance will bring them in.

The nest is made out of mud and straw and lined with fine hay and feathers, usually white. Five to six white, reddish-brown spotted eggs are laid and hatch in around fifteen days. Within three weeks, six more young swallows are added to the graceful, engaging flights of the chattering swallows.

These swallows have proved they are adept at change. From the time of the earliest colonists, these beautiful birds chose to build their nests in old weathered barns and sheds with open doors and windows where they could enter to safety from weather and predators.

Barns on farms are not needed today as in the past. They're being replaced by tight new buildings with no open doors or windows that swallows love. Horses are being replaced by automobiles and tractors, leaving the birds to find other nest sites when these older buildings are destroyed or replaced.

Being able to easily change its habits, now one of its chosen sites in under bridges and that is one circumstance that has brought it southward. Until around three decades ago, it was a spring and fall migrant in the Central Savannah River Area. As in the past though, it quickly adapted to man's extended highways and bridges and began to nesting space all along these river-crossing cement spans. Now it is a common breeder in our area.

The barn swallow's food consists entirely of insects caught on the wing as it skims low over ponds, fields and meadows.

Measuring 6 1/2 inches, this dark, metallic blue swallow with glistening reddish-buff breast and deeply forked tail has a light chestnut breast and dark chestnut face. The sexes are much alike, though the female is paler in color than the male.

Swallows Are Signs of Spring

Winter appears to be hardly gone when we sight the barn swallow home from Brazil, darting, zipping and twittering in flight. The sighting reminds us how things change for both man and birds, especially environmentally.

When we came to the Central Savannah River Area some five decades ago, there were no barn swallows around, that is that nested in the area. The foothills of the Georgia and South Carolina mountains were the southern limits of their breeding range. As man alters the environment of North America, birds adapt to the changing conditions or decline in numbers. The barn swallow adapted.

This is the second time this species has changed nesting situations. Before our forefathers came to America, these swallows built in tree cavities, rock crevices and caves. But from the time the first Colonists started building barns, the barn swallow, being an opportunists, left tree cavities and rock crevices for buildings, maybe because barns gave better protection from nasty weather. Because of this habit, this flying feathered saucer has become known as the "barn swallow," a name it holds until today.

Many of these forked-tailed birds still nest in barns. But, as our great freeways swept through the countryside, barn swallows followed, nesting under the many bridges that spanned the thoroughfares. This brought them into our area and carried them even farther south.

The barn swallow is perhaps the best known of the 20 plus species of American swallows. Small and trim, it is easily recognized because of its purplish-blue back, red-brown forehead, rich rufous breast touched with white, long pointed wings and its deeply forked tail. The forked tail is a good identification mark, the barn being the only swallow with such a tail. The female is usually duller in colors, but not always.

These sleek birds feed on the wing, never flying a straight line, but circling, darting, and twisting in the air. Holding their tiny wide-gaping mouths fully open like suction cups, they scoop out of the air hundreds of noxious insects, including gnats, mosquitoes, house flies, grasshoppers, crickets, moths and dragonflies.

The nests of barn swallows are semi-circular or cup-shaped and made of mud mixed with sand. The shape depends on whether the nest is attached to a beam or rafter or a flat shelf. The nests are lined with soft materials and feathers, usually chicken feathers. The three to five white eggs have markings of bright reddish-brown and pale lilac.

This handsome swallow breeds over most of North America, nesting from northwestern Alaska to Mexico and from the Atlantic to the Pacific coast, including much of Canada and the United States.

Barn swallows nesting in Alaska will travel 7,000 miles from the sunny pampas of Argentina each spring to nest in North America. Year after year these swift fliers travel the same sky ways to and from breeding and wintering grounds. Yet they have nothing to direct them but that "something" (wild wisdom) that speaks out from the earth or sky to guide them to their destination.

No matter the weather, spring has sprung when the swallows return.