Mme. Owl may be spending her first day in the nest box this year. If so, things are moving along a bit faster than I expected. The first egg, if memory serves, may appear within two days.
Mme. Owl in the nest box this morning, amid debris deposited there by a pair of starlings. So far this year, she hasn’t remained in the nest box for more than about 10 minutes at a time (although the number and duration of her nightly visits has been increasing), and she has never been in the box during daylight hours.