Blackcap in the trees

Walking around RSPB Ham Wall Nature Reserve in Somerset I can hear singing. It must be a warbler of some sort but my ability to identify a bird from its song is just as poor as my ability to ‘name that tune’ from the opening bars of songs that I know incredibly well. In fact it’s probably the same skill, or lack of it in my case.

Then I see it.

It’s a male Blackcap.