On behalf of Jo who sent in an email :-
Every year around this time I have a passing visitor I cannot identify.
The bird is medium sized, with a bright red-orange head and a grey band around its throat. It is solitary, perches high on a tree branchand has a lovely sweet varied song, rising and falling, which carries on for a long time.
Various friends have suggested linnet or redstart, but photos don't match. I can't find it in my UK bird book or the RSPB website.
Please can you help?!
Many thanks Jo, West Cornwall