St Kilda Wren
Tweet of the Day is a series of fascinating stories about our British birds inspired by their calls and songs.
Bill Oddie presents the St Kilda wren. The Island of St Kilda is not where you'd expect to see wrens but the wrens that sing along the cliffs of St Kilda are the same species as the common wren, but after 5000 years of isolation they've evolved a different song and are slightly larger and slightly paler than the mainland wrens. Bill Oddie remembers an encounter with the St Kilda Wren.
St Kilda Wren (Troglodytes troglodytes hirtensis)
Webpage image courtesy of Chris Gomersall (rspb-images.com)