Carolina wrens nest in open cavities only a few feet off the ground and are notorious for choosing hanging plants, garage shelves, and mailboxes as nesting sites. Males will start several nests for the female to choose from and then the pair will finish building the nest together. They build sturdy nests that often have a dome over the top. Nesting materials may include the usual leaves, twigs, and moss, as well as more unusual items such as dried snake skins or random plastic items. Carolina wrens, with their big white eyebrow of feathers and loud, exuberant, year-round “tea-kettle, tea-kettle” song, often give the impression of being particularly curious and joyous birds.