One of the owlets is alive! It appeared back in the nest box last night, hungry and looking for food but otherwise appearing quite healthy and clearly able to fly. It didn’t stay long and annoyingly we hadn’t left any food (having more or less given up on them).
Back from the dead.
We’re not sure whether it is the male or female, and we don’t know what has happened to the other one. We’ll put some food back in the nest box tonight in case either come back.