Foraging Chiffchaff

Yesterday morning was quite bright and sunny when I arrived at Stithians southern cut-off and for the first fifteen minutes I watched this busy little Chiffchaff foraging on semi submerges vegetation along the water margin.
It was picking off insects emerging from beneath the waterline, never stopping for more than a second these birds make a challenging photography subject as they weave in and out of view among the thickets,
One moment in full sunlight and the next in full shadow and occasionally producing a reflection when right on the waterline, This small bird worked the entire area in front of the hide presenting me with a few opportunities before it departed to the next available section ready to start all over again but by now it was to distant to work on,