For me it's a Reed Warbler
This is a Whitethroat
I agree with Alan, Reed Warbler for me too. The bill is too long for a Whitethroat. The general shape of the bird, the colouration and the long tail with the rounded end says Reed Warbler.
In some of the photos the bird appears to be singing. The Reed Warbler's continuous rattling song is pretty unmistakable apart from a Sedge Warbler which this isn't.
Nice photos by the way. I must get up to College Lake someday as I'm a member of BBOWT but I've never been.