Wrens are small songbirds that are often heard but not easily seen. They like to inhabit dense vegetation and brambles. Most wrens are small and inconspicuous, except for their loud and complex songs. They have short wings with barred patterns on most species and often hold their tails upright. Wrens are primarily insectivorous, eating insects, spiders, and other small arthropods. The document then describes the characteristics of 8 different wren species found in North America.