Sterna Caspia(?) Habits of the Plover (S. Helvetica) 199 Nantucket, 1875. Sept. 24 of them and I shot down two one of which afterwards escaped. The remaining three we followed for a long time in vain; they were shy as hawks but Fisher finally killed another at long range. Their note is the long drawn whistle of three intonations, so well known to the gunners; their ordinary usual position is that ordinary one is characteristic of all the plovers but they are rather difficult, and much faster than the smaller species. While here a little company of large terns came along and fished for some time within a hundred yards of me: they were either S. Caspia or S. Segetia I am inclined to think the former. They lit several times and swam on deep water. Their flight and plunging was scarcely different to that of the smaller species. The only note that I heard was a banceous bank somewhat like the angry one of Sterna paradisi but much louder, hoarser & sharper. Saw also numbers of Seams aquatics on S. Delawareensis and S. humilis. Of the latter I shot 4 min. quail, two of which were well got. Had a good shot at a black duck in the morning as he sprang out of a pond hole but missed both bears. Reached the town at 8 P.M.