One chick remaining in nest boxes

The unlucky Box 13 pair have hatched one chick. It is several days old. The other egg will not hatch.

On the South side, nothing came of Box 2 eggs. There were four, but there were no signs that they raised any chicks (no poop), the grassy nest is clean.

All the other remaining chicks have left (Boxes 4, 7 and 10). So I in fact can do a tally now. Will wait for the last chick to leave before sending it in.