2 adults and 2 chicks. First observed 27/10 and again today 3/11. Chicks have grown significantly in the past week and their plumage has changed to a more adult-like wing plumage. Today both adults arrived on the ledge simultaneously, but one left soon after. The other adult stayed to feed one chick with what looked like some type of bird whilst the other chick retreated behind the rock with only its tail remaining visible