Bewick's Wren

Superficially similar to Carolina Wren but duller grayish-brown and slightly longer-tailed. Occurs in a variety of scrubby habitats, especially thickets and hedgerows in open woodland. Also at home in gardens, residential areas, and parks. Usually skulking, but sometimes perches conspicuously when singing. Song is variable, but usually includes high-pitched buzzes and musical trills.