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Rh the hen, who flies before him, and then, having followed her for a short distance, flings himself down, throws back his head upon his back and rolls from side to side, each time slowly passing the splendid white feathers of first one and then another wing over the velvet black plumage of his body, by which, of course, they are shown to the very best advantage. The hen commonly stops whilst he is doing this, and may be supposed to pay some attention, but as to the amount, as I write from memory after many years, I will not here express an opinion. After a while the male bird rises, again pursues the hen, again flings himself down, and this is continued for a greater or lesser number of times, till either he gives up the chase, or the two have come to a thorough understanding. When thus rolling with wings spread out and head thrown back upon himself the bird is in a kind of ecstasy, and it is easy to go right up to him—as I have myself done—and seize him by the neck before he becomes aware of one's presence.

These antics therefore—though in a bird so different as the ostrich —bear a considerable resemblance to those of the shag, though the latter does not at any time make use of his wings. This, again, is interesting, for there is nothing specially handsome in the wings of a cormorant. The crest, however, is conspicuous as the head is flung up, and by the opening of the bill, which is a very marked feature,