Wrens are small, active birds belonging to the family Troglodytidae. They are known for their distinctive, loud songs and often have a brown or gray plumage. Wrens are found in various habitats, including forests, grasslands, and gardens, and are common in North America and Europe. They typically build their nests in dense vegetation or cavities, using materials like twigs, grass, and feathers. These birds are insectivorous, primarily feeding on insects and other small invertebrates. Wrens are known for their curious and energetic behavior, often hopping around on the ground or flitting through bushes. Their adaptability and resourcefulness make them a common sight in many environments.