Not too much to add here other than its clear the little owlets are exploring their immediate location now.
Twice I've run past their field, twice I've heard a commotion from the trees and hedges bordering their field, twice I've investigated and twice I've been met by an indignant, stary-eyed little owlet which promptly bounced (very characteristic undulating flight) away followed by the mobbing blackbirds, chaffinches etc...
The weather has been pretty poor all week (in fact it blew the trailcam over once), but I hope to retrieve the camera again after this week and may have an HD video of our growing owlets then. Fingers crossed eh?