Well, actually, it was a blue tit!.
At 7.30 am, the hardier souls among us (Phil, Dave, Val, and your trusty reporter) met up with Steve Joul to survey the bird boxes put up by FOAW. We surveyed the ones we put up in January 2010 – ie along Crag Lane – and we saw birds using about half of them – including one trashed by a squirrel or squirrels).
As a postscript, on Sunday 15 May your trusty reporter walked down the Meanwood Valley Trail and can report that three out of four boxes observed were in use. The fourth had been pulled apart by forces unknown