Anyhow, I managed to see quite a few birds, including some lovely House Martins, Swallows and Great Crested Grebes over and on the water. I also got to see quite a number of Willow Warblers and Chiffchaffs. Hard to tell apart in looks, but always helps when they sing for you.
A Willow Warbler
And the very similar Chiffchaff
Great Crested Grebe