1146 hrs
One of the adults is in full-blown miffed mode by the sound of the protest calls. The bird is away from the nestbox so could be on one of the towers above the nestbox. Its the kind of sound s/he makes when we are go out on the roof for banding, so someone is protesting some work on the rooftop it sounds like. The Hotel did talk to whomever was working earlier and reminded them to keep away from the box and to keep the noise to a minimum. One advantage with her protesting is that it should attract Ivy from wherever he is. Yup, just got a clear sound and that is definitely Princess royally annoyed at something!
Can't see her flying on any of the other camera angles so she's overhead ...