Whooper swans - near Angle bay

John Medwell and Ian Bennett (NT) today reported 2 whooper swans in a field near a small pool near the minor unclassified road to Angle Bay off the Angle/Pembroke B-road. They were noted after doing their slightly late WeBs count at Angle Bay. With the international Whooper/Bewick's swan survey in mind, are there any others likely to be lurking around any of the other small, possibly less well-watched, farm pools etc elsewhere in the County?