Eurasian wren
The Eurasian wren was described by the Swedish naturalist Carl Linnaeus in 1758 in the tenth edition of his "Systema Naturae" under the binomial name "Motacilla troglodytes". The specific epithet is from the Ancient Greek "" "cave-dweller". In 1555 the German naturalist Conrad Gessner had used the Latin name "Passer troglodyte" for the Eurasian wren in his "Historiae animalium". The species is now placed in the genus "Troglodytes" that was introduced by the French ornithologist Louis Pierre Vieillot in 1809. There are 28 recognised subspecies.