The Eurasian wren (Troglodytes troglodytes), also known as the northern wren, is a diminutive bird, the sole representative of the wren family Troglodytidae found across Eurasia and Africa's Maghreb region. In Anglophone Europe, it is often simply referred to as the wren. This bird is characterized by its very short tail, typically held erect, a short neck, and a relatively long, thin bill. Its upperparts are russet brown, while the underparts are a paler buff-brown, complemented by a cream buff supercilium. Both sexes exhibit similar plumage.
The Eurasian wren can be identified by its compact, robust body, rounded wings, and notably short tail. It measures approximately 9 to 10 cm in length with a wingspan ranging from 13 to 17 cm, and weighs around 10 g. The plumage varies geographically, with some isolated populations exhibiting distinct coloration.
The Eurasian wren occupies a wide range of habitats, including cultivated and uncultivated areas with bushes and low ground cover, such as gardens, hedgerows, thickets, plantations, woodland, and reed beds. It is also found in more open spaces with bramble clumps or gorse, rough pastures, moorland, boulder-strewn slopes, rocky coasts, and sea cliffs.
This Palearctic species is widespread, with the nominate race breeding in Europe up to the northern latitudes of Norway and Sweden, and extending south to Spain, France, Italy, and southern Russia. It also breeds in Western Asia as far east as Syria and is represented by various subspecies across its range, including isolated island populations.
The Eurasian wren is a ceaselessly active forager, darting about in search of insects among dense vegetation or within crevices. It is known for its quick, jerky movements and propensity to stay close to the ground, often being flushed from under overhangs or banks. The wren may occasionally ascend to higher canopies but generally prefers lower strata near the ground.
