Eurasian Wren
Troglodytes troglodytes

The Eurasian wren is a very small insectivorous bird and the only member of the wren family found in the Old World, specifically in Eurasia and Africa (Maghreb). In Anglophone Europe, it is commonly known simply as the wren. It has a very short tail which is often held erect, a short neck and a relatively long thin bill. It is russet brown above, paler buff-brown below, overall finely barred darker, and has a cream buff supercilium. The sexes are alike. Source
Where it is now
In the last 8 weeks this bird was recorded 1,751,799 times across 62 areas (each area is a 5 degree square).
See the Eurasian Wren on the live map
Movement and weather
Each season it is first heard regularly where daytime highs are around 19°C (typically 9 to 25°C, from 17 areas). That range is wide, so temperature alone does not explain when it turns up.
Arrival dates
The week it was first heard regularly in each region, after at least six weeks away. Dates differ from south to north, so a region has a range.
| Region | First arrival | Last arrival | Typical peak | Areas |
|---|---|---|---|---|
| Europe | 17 November 2025 | 5 October 2026 | 3 August 2026 | 16 |
| Africa | 2 February 2026 | 2 February 2026 | 23 February 2026 | 1 |
Figures are effort corrected and come from automatic sound identification, which makes mistakes. How this is measured and how it compares with human observers.