So here are just a few photos and details of the bird, with no doubt more to follow...
|The identification clincher can be seen in the open wing, with both P3 and P4 (primaries) emarginated:|
the narrowing of the outer web of the feather towards the tip of the wing.
On other 'reed' warblers this emargination is only seen on P3.
As if we need to plug the site even more, but any visiting ringers wanting to join the ringing group at Nanjizal can find out more details elsewhere on the blog.