“The Aura Vultures,” says Mr. Hill, “are often to be observed soaring in companies, particularly previous to a thunder-storm. This occurrence is commonly remarked, because at almost all other times this species is seen solitary, or, at most, scouring the country in pairs. They appear to delight in the hurly-burly of transient squalls, gathering together, and sweeping round in oblique circles, as the fitful gust favours them with an opportunity of rising through the blast, or winging onwards through the misty darkness of the storm. The effect which this imparts to a tropical landscape at a time when thick clouds are upon the mountains, and all vegetation is bending beneath the sudden rush of the tempest, as gust gathers louder and louder, is particularly wild and exciting. Ordinarily, however, in the evening, when the sea-breeze is lulling, and the fading day-beam is changing like the hues of the dying dolphin, they delight to congregate, and career at an immense height. At this time they soar so loftily, that they are scarcely discernible as they change their position in wheeling from shade into light, and from light into shade. They seem as if they rose upward to follow the fading day-light, and to revel in the departing sunbeams, as, one after the other, the varying hues are withdrawn, or irradiate only the upper heavens. “There is a salacious predilection of the Aura Vulture for the black hen of the poultry-yard, and the black turkey, supported by so many well-authenticated instances, that I cannot doubt the fact. It is said that the Vulture on these occasions makes its amorous attack with an eagerness assuming the character of ungovernable fury. Fear overcomes the hen, and the sudden assault terminates in an embrace, from which she escapes only to linger and die in a very short time. A sort of _carcinoma uteri_ is the consequence. * * * “This is altogether a curious and very unaccountable fact. Those who know how difficult it is to bend instinctive nature, and induce the union of animals different and yet similar, will perceive the perplexity in which this occurrence is involved. The only link of relationship in these events, is the very distant similitude of colour; for the unnatural predilection is restricted to fowls of black plumage.” I may add that on my reading the above notes of my friend, I mentioned this statement to my negro servants, both of whom assured me that the fact was indubitable, and well known; and each of them averred that he had witnessed its occurrence.