Abby frequently starts the morning by bringing nesting material into the nest box. This is what we found first thing this morning. The box had been more or less empty last night!
It looks even more from the side.
Abby does a nesting wriggle.
You can certainly see this wriggle better from the top.
This time we wondered whether she was going to keep bringing material in. This seems to be some hay that she has found.
By the end of the day though, the nest box was in its usual state - more or less empty of nesting material.