Dunnock
Prunella modularis

Dunnocks prefered habitats are gardens and open areas with bushes so they are happy all along the Rodwell Trail apart from the shadiest parts such as section 3.

You'll often see a pair of Dunnocks hopping around with a third Dunnock keeping some distance away in the background.

This will be an unmated male trying to steal the other male's partner while he's busy elsewhere!