It took me awhile to figure out what this woman was saying (I am in duh mode) but apparently they had a close encounter raptor style

From the frodocam site:
Hi everyone,
My sore head of 5 mins ago tells me that it may be our building that they are nesting on. I just read your update and because of a previous head slamming incident of another staff member went to our roof to check it out.
Our building is in Mary street near Felix street.
regards
shut eye
Ladybird of Brisbane CBD (Reply)
Fri 02 Oct 09 (11:22am)
Hi Ladybird, Sorry to hear about your sore head. However, that is a sure sign that you have ventured very close to the nesting spot.
Peregrines have a fairly limited area close to the nest where they will actually strike an intruder - unlike say Australian Magpies that defend a very wide area. They sort of have a series of zones where they pass from agitation to intimidation to active defence.
If you you and others are being struck, then it means that you are probably within a few metres of the actual nest. If it was a bit further away, then they would perch nearby and adopt an agressive stance or fly/swoop low overhead. In both cases they would be very vocal. If intimidation doesn’t work then they will strike. I fear that the way you are accessing the roof may be leading you straight into the actively defended area.
Please keep me informed. This is the best lead that we have had in the last two seasons.
Greg Czechura
Wed 07 Oct 09 (10:37am)