Day: April 2, 2026

Tree Swallows are back! They are usually the first of the swallow family to return north.

With the spring migration in full swing, it’s a joy to see these beautiful, acrobatic birds once again coursing over fields and ponds in Virginia.

Tree Swallows benefit humankind by devouring thousands of insects as they dive and dart over farm fields and wetlands alike. Not only that, their iridescent deep-blue backs and clean, creamy front and undersides make them gorgeous to look at.

These aerolists twist and turn, chasing flying insects. They nest in tree hollows and nest boxes usually meant for Eastern Bluebirds.

Don’t let their beauty or their sweet, chirping sound deceive you. When nesting, Tree Swallows will divebomb anyone who comes close to a box where they are nesting. I can speak from experience.

While searching a local marsh with bluebird boxes fixed to roadside fence posts, I unintentionally got too close to one. Soon, a pair of Tree Swallows took turns buzzing my head. I quickly realized my mistake and moved away.

Tree Swallows are fiercely competitive, too. I once saw a pair of males battling over a hole in an old snag by a canal. The two birds faced off, screeching noisily as their wings flapped frantically.

Soon, one bird forced the other one down toward the canal’s surface, but didn’t stop there. The bird on top forced the upside-down bird underwater, drowning it in less than a minute.

Tree Swallows perch in small to large groups on telephone wires and fence wires. From that perch, they launch into an attack on unseen prey.

During haymaking times, Tree Swallows join Barn Swallows in swooping high and low in circles around the farmer’s mowing machine. They feast on the fleeing insects as the farmer cuts the alfalfa or mows a pasture field.

Come June, Tree Swallows will have taken up nesting from the midsouthern states to near the Arctic tundras. They winter along the southern and western coastlines in the United States and throughout Central America.

So, take heart. If the flashy Tree Swallows haven’t reached your area yet, be patient. Migration continues through early June.

© Bruce Stambaugh 2026