something or other on the ground, imagining a fresh object for each run. Often had I wondered, first at the eyesight of the bird, which seemed to pierce the mystery of a worm or beetle at fifty or sixty yards distance, and then at its apparent want of interest each time it got to the place where it seemed to have located it. Really it had but just lost sight of what it was pursuing, but aerial game had not occurred to me, and the tell-tale spring into the air, which would have explained all, had been absent on these occasions. I have called such leaps "last efforts," but I am not quite sure if they are always the last. More than once I have thought I have seen a stone-curlew rise into the air from running after an insect, and continue the pursuit on the wing. This is a point which I would not press, yet birds often act out of their usual habits and assume those proper to other species. I remember once towards the close of a fine afternoon, when the air was peopled by a number of minute insects, and the stone-curlews had been more than usually active in their chasings, a large flock of starlings came down upon the warrens and began to behave much as they were doing, running excitedly about in the same manner and evidently with the same object. But what interested me especially was that they frequently rose into the air, pursuing and, as I feel sure, often catching the game there, turning and twisting about like flycatchers, though with less graceful movements. Often, too, whilst flying—fairly high—from one part of the warrens to another, they would deflect their course in order to catch an insect or two en passant. I observed this latter action first, and doubted the
