Quite a lot of Raven activity in Paisley today,  although the amount recorded probably reflects how often I looked up from my desk rather than what was REALLY going on. Anyway:
One adult made four brief visits to the nest between 0745 and 08:00. Between most visits it returned to a perch on the tower but between the third and fourth visit it hopped into the guttering (possibly drinking or picking up water for the chicks/sitting bird). After the final visit it flew off north and perched in a treetop.
One ad on edge of nest at 12:45, then flew to tower of Orr Church.
At 13:25, one adult on the edge of the nest flew off and was replaced by the other which had been watching from Orr Church tower.
At 14:30, a bird which had been standing on the roof of a tenement just to the east of the nest flew up and round the tower, theatrically dangling it's legs and scattering the neighbouring Jackdaws, before alighting out of sight (presumably on the north face of the tower).