We could only speculate , some say it was a young owl but with so much movement from the owl, its really hard to say if it was one of ours or not.
Some have asked if this was a box take over, would Mel or Sydney not fight for their box?
Truth is we have seen at another box that was taken over by a new couple a few years ago with out any kind of "Fighting" for it and the only way any kind of fighting would happen for this box is if we had a owl already in the box and nesting was going on inside or if courtship was in progress.
Thanks to Robin from Jersey of the SPO webcam chat who was fast on her toes and was able to grab a short video
A few mins later we heard a thump as 2 owls showed up and Mel tried to call the owl inside the Box with deeting and dancing.