Today's visit to the nest boxes was to establish definite sightings of birds in and out of the boxes.
There are great tits in boxes 11 and 18. 11 is in an oak tree, close to the hedge adjoining Watts Wood and 18 is in an ash tree in the hedge between South Wood and Lincolnshire Cooperative Wood. Both are just coming in to leaf.
A tree sparrow flew out of box 20, which is in a birch tree close the hedge adjoining Watts Wood. Is this a pattern?
A blue tit exited the box above the Threshold and one returned there as we were leaving the wood. This box is quite exposed and faces more or less south south east, so it must get pretty hot in there when the sun is out!
Despite seeing boxes packed with vegetation, these were the only occupants we spotted today. Maybe there are birds on eggs inside some other boxes we can't tell yet, so more visits as the season progresses.