That's a pretty good haul in half an hour, Jim! Which bridge was that, the one across the road from the Ramblers over the Churnet or the one over the little brook in Dimmings Dale? I've never seen a pied flycatcher so that would seem a good place to go! I think there may also be some on Cannock Chase too although, as I say, I've yet to break my duck! :C
Mike