"[...]not far from seventy species. Of course the principal part of all the birds to be found in such a place are transient visitors merely. In the long spring and autumn journeys it will all the time be happening that more or less of the travelers alight here for rest and refreshment. Now it is only a straggler or two; now a considerable flock of some one species; and now a miscellaneous collection of perhaps a dozen sorts. One of the first things to strike the observer is the uniformity with which such pilgrims arrive during the night. He goes his rounds late in the afternoon, and there is, no sign of anything unusual; but the next morning [...]".