Tallaght Town Centre and two large gulls appear to have made a home recently on top of one of the pitched rooftops. I can see one of them from my office window, on the north face of the clock tower of County Hall, one sitting in the niche of a louvred ventilator. When its mate appears, the two greet each other with many "Shree! Shree! Shree!" calls that remind one of being at the seaside.
Someone speculates that perhaps the sitter is one of this year's young, still being fed by a dutiful parent.
I don't know enough about them to judge, but it looks to me like they're considering nesting on the rooftop. It is sheltered from the prevailing wind. It overlooks a courtyard that isn't accessible to the public. There are several fast-food restaurants in the area from which an enterprising gull might, conceivably, glean enough discarded food to raise a chick.
The nesting theory gained a little ground yesterday when the sitting gull maintained its position even during the worst of a number of thunderstorms that swept the area.
We are quite a way from the sea, though, and I wonder if nesting is a viable option. I shall bring my binoculars tomorrow. If nothing else, it should worry my colleagues in the opposite side of the building as I peer out the window and focus in one something unseen over their heads.