As Terry says, several (I counted 4 this morning) night herons can be seen at the spot he indicated. A family seems to have been living there over the last few years, although whether able to be recorded on a particular visit was a matter of luck - rather less luck being needed now. The very exposed ‘hide’ is not relevant at present, and the exposed roosts mean that the birds can be put to flight by a casual stroller along the pedestrian path. Perhaps they will be more at home when the deciduous exotics regain their foliage.