Day 65. After the first owlet disappeared yesterday, the second left the nest box last night, despite the wet weather, and hasn’t returned since. No signs of either owlet (and we have searched and searched). There is a slim chance they have both fledged and are roosting in another tree somewhere nearby, but the weather has been dreadful (owls can’t fly in the rain) and they have only just started to learn to fly.
Fingers crossed. We will keep the nest box ready for them (and have adjusted the cameras so we will spot them if they do appear), but there is a good chance we won’t see them again.