My .. how you have grown in less than a week!
This evening visit to the pier area was poor really regarding Terns. But I did witness the sight of 2 Roseates just off the pier which flew around here at a distance, the call of the birds alerted me to their presence here. What followed behaviour wise is something I have only seen on a couple of occasions. The birds called to each other constantly, circulling each other whilst climbing higher and higher gaining a great height before flying off south.