assert from hence that the nuptials of this species are performed upon the wing, because the premises are too slight to decide so important a fact; but it is known that it is so with the European Swift, a bird whose manners greatly resemble those of our Night-hawk. It is when the afternoon rains of the season have descended plentifully, that these birds are most numerous, and most vociferous; and they continue to fly till the twilight is beginning to fade into darkness. After this, they appear for the most part to retire, and the strange and startling voices, that before were sounding all around and above us, are rarely heard by the most attentive listening. A lad informed me that when out fishing during the night, not far from the shore, the canoe is often surrounded by bats, which make a great noise. But my assistant, Sam, who heard the statement, assured me that these were not bats, but Piramidigs, (with some bats, however, in the company), and that these birds, when the moon is at or near the full, continue on the wing through the night.[9] On dark rainy days, such as we get sometimes in May, I have seen and heard two or three abroad even in the middle of the day, careering just as at nightfall. [9] I may be permitted here to record a tribute of affection to this faithful servant, Samuel Campbell, whose name may often appear in this work. A negro lad of about eighteen, with only the rudiments of education, he soon approved himself a most useful assistant by his faithfulness, his tact in learning, and then his skill in practising, the art of preparing natural subjects, his patience in pursuing animals, his powers of observation of facts, and the truthfulness with which he reported them, as well as by the accuracy of his memory with respect to species. Often and often, when a thing has appeared to me new, I have appealed to Sam, who on a moment’s examination would reply, “No, we took this in such a place, or on such a day,” and I invariably found on my return home that his memory was correct. I never knew him in the slightest degree attempt to embellish a fact, or report more than he had actually seen. He remained with me all the time I was in the island, and was of great service to me. Many of the subjects of this work were obtained by him, when I was not myself with him, and some which I believe to be unique. Early in the morning, before the grey dawn has peeped over the mountain, I have heard over the pastures of Pinnock Shafton, great numbers of these birds evidently flying low, and hawking to and fro. Their cries were uttered in rapid succession, and resounded from all parts of the air, though it was too dark to distinguish even such as were apparently in near proximity. Now and again, the hollow booming sound, like blowing into the bung-hole of a barrel, produced at the moment of perpendicular descent, as described by Wilson, fell on my ear.