Willow Warbler

 I wasn't sure what this was at first, it was a toss up between a Chiffchaff or a Willow Warbler, the two species are so alike they are often mistaken for each other. from a physical examination they can be identified by the number of flight feathers or the colour of their legs and few other subtle differences, but the easiest way to distinguish them, especially from a distance is their song. Willow warblers have a much more melodious song whereas the Chiffchaff has a much simpler call.

I am fairly sure this is a Willow warbler and this one with a beak full of tasty grubs was hopping around this lone hawthorn bush waiting to feed its young.