There are approximately 80 species of true wrens, mostly small, brownish passerine birds in the mainly New World family Troglodytidae. The scientific name is taken from the Greek word "troglodytes" (from "trogle" a hole, and "dyein" to creep), meaning "cave-dweller", and refers to its habit of disappearing into cavities or crevices while hunting spiders or to roost. The Eurasian wren (Troglodytes troglodytes) is a very small bird, and the only member of the wren family Troglodytidae found in Eurasia and Africa.
See also: Bicoloured wren, Buff breasted wren, Carolina wren, Eurasian wren, House Wren, Marsh wren, Rufous-breasted Wren, Santa Marta wood wren