No193: Garden Warbler

Like this little bird, I'm going out on a limb. We did our monthly  wetland bird survey this morning. There is seldom anything unusual or unexpected on our allocated reservoir, but yesterday, there was a report of Black Terns. I was of course keen to see if they were still there - to add to my BlipBird total. Sadly, we didn't see them. I did, however, see, and more importantly hear this little bird, which had a song very similar to a Blackcap, and this, according to the literature makes it a Garden Warbler. So I'm calling it. 
There may be an edit later if if I get a confirmation, or otherwise.

Edit: Yay! Had this confirmed by my local expert!