continue to sing to this happy family, and may the voice of the Whippoorwill never bode them any misfortune! The Night-Hawk, or Piramidig, (_Caprimulgus Americanus_,) is similar in many points to the Whippoorwill, and the two species were formerly considered identical. The former, however, is a smaller bird; he has no song, and exhibits more of the ways of the Swallow. He is marked by a white spot on his wings, which is very apparent during his flight. He takes his prey in a higher part of the atmosphere,--being frequently seen, at twilight and in cloudy weather, soaring above the house-tops in quest of insects. The Whippoorwill finds his subsistence chiefly in the woods, and takes a part of it from the branches of trees, while poising himself on the wing, like a Humming-Bird. I believe he is never seen circling aloft like the Night-Hawk. The movements of the Night-Hawk, during this flight, are performed, for the most part, in circles, and are very picturesque. The birds are usually seen in pairs, at such times, but occasionally there are numbers assembled together; and one might suppose they were engaged in a sort of aërial dance, or that they were emulating each other in their attempts at soaring to a great height. It is evident that these evolutions proceed in part from the pleasure of motion; but they are also connected with their courtship. While they are soaring and circling in the air, they occasionally utter the shrill and broken note which has been supposed to resemble the word Piramidig, whence the name is derived,--and now and then they dart suddenly aside, to seize a passing insect. While performing these circumvolutions, the male frequently dives almost perpendicularly downwards, a distance of forty feet or more, uttering, when he turns at the bottom of his descent, a singular note, resembling the twang of a viol-string. This sound has been supposed to proceed from the action of the air, as the bird dives swiftly through it with open mouth; but this supposition is rendered improbable by the fact that the European species makes a similar sound while sitting on its perch. It has also been alleged that the diving motion of this bird is an act designed to intimidate those who seem to be approaching his nest; but this cannot be true, because the bird performs the manoeuvre when he has no nest to defend. This habit is peculiar to the male, and it is probably one of those fantastic motions which are noticeable among the males of the gallinaceous birds, and are evidently their artifices to attract the attention of the female; very many of these motions may be observed in the manners of tame Pigeons.