Sedge Warbler

I am fairly sure this is a Willow Warbler - Phylloscopus trochilus. At any rate, it was in a willow tree. It was not singing, in fact it was alarm-calling, so although I was on a footpath, it must have had a nest nearby.

If it is not a willow warbler, I am open to correction. I am no expert on warblers and my desktop computer has no speakers so I can't compare it with anything on-line.

It would appear to a Sedge Warbler rather than a willow warbler.