This is not the Scilly Isles bird but may be of some help if you are looking for an image to help ID.

The Black and White Warbler is a bird that I am very familiar with from visits to the USA and Central America. They are a very active species and hard to photograph due to their constant movements. They have the habit of moving behind a trunk to hide and behave like a tiny Nuthatch as they creep around thick branches and tree trunks. A bird has been sighted on the Scilly Isles today and this photograph may help anyone who is looking for an image to help in identification.