I heard this little wren in the tree tweeting away near the path when I was walking in the park. It was flitting about and with all the leaf cover it took me ages to find it. It didn't stay still for long so I have lots of images of its beak, half a tail, one foot or the other and lots of blur.
Interesting to watch it for a while, they are tiny little birds and constantly busy foraging for insects in amongst the trees and shrubs.