Under the Overpass

A flock of Cliff Swallows oscillates between their nest along the Interstate 5 Freeway, and the San Dieguito River. A flock of Cliff Swallows oscillates between their nest along the Interstate 5 Freeway, and the San Dieguito River. A flock of Cliff Swallows oscillates between their nest along the Interstate 5 Freeway, and the San Dieguito River. A flock of Cliff Swallows oscillates between their nest along the Interstate 5 Freeway, and the San Dieguito River.