One Out One In

It's all 'go' at the nest box.  Mum and dad are in and out constantly.  A magpie was balancing on top of the nest box at one point.  I don't think he can get his beak in the hole, but I'm chasing him out of the garden just to be sure.  I've got blackbirds nesting as well.  Oh, and Jonathan and his wife over the garden wall.  Not that they'd be frightened of a magpie.