Topic summary
St Kilda wren

The St Kilda wren (Troglodytes troglodytes hirtensis) is a small passerine bird in the wren family. It is a distinctive subspecies of the Eurasian wren, endemic to the islands of the isolated St Kildaarchipelago, in the Atlantic Ocean 64 kilometres (40 mi) west of the Outer Hebrides, Scotland.