Lehner, P. 1965 JAN. 24 walked the island in search of Sooty recoveries and suitable places for firing the cannon net; there were few of either; at 1245 there were a few Sooties flying over the island, and the multitudes could be seen coming in by 1700; surveyed the causeway and found it riddled with mouse holes - it looks like a good opportunity for a home range study, having the directional movements pretty well limited to two; checked the Gray-backed Tern eggs: Islet total: 9 new: 2 Pier: total: 6 destroyed: 1