Many viewers enjoyed their Sat watching the antics of Sydney in the box. She slept, and preened her feathers making sure each feather aligned just right and even scratched at the floor and walls after doing some house cleaning.
What does this scratching mean?????
Something gets Sydney attention outside and she gets spooked.
So if you saw Sydney one minute in the box and then the next time you looked and she was gone, you weren't seeing things, Sydney did indeed flee the owlbox at 5:28pm OBT in the daylight.