Fourth picture is a bit of a naff one of what I think is it’s nest.
Several pairs nesting in holes in the cliff face, one partner typically to be seen as a head only within the nest site (one image circled to illustrate this behind departing mate flying away)
Here we have a small colony of true sea cliff nesting birds of the nominate species, not the ubiquitous Feral subspecies.
Although, there were undoubtedly a few Feral Pigeons at the further end of the car park, overlooking the Harbour entrance ~ near a group of amateur fishermen who were beach casting effectively.
The Rock Doves were nesting in close proximity to the Fulmar at several locations (as just seen in second image, where a sitting Fulmar's head is just visible in the large hole behind the RD on the ledge), and also where small holes were nearby, these often had Starlings. The Rock Doves gathered outside their holes on small ledges.