described—is not frequently heard; but still, whatever I have seen them doing they have generally been doing it dumbly. This includes the series of funny little bows or bobs, accompanied by a shuffling from one foot to the other, which the male, one may say with certainty, is in the habit of making to the female, but which probably the female—as in the case of other sea-birds I have mentioned—also sometimes makes to the male. A display of this sort is usually followed by a little kissing or nebbing match, after which, one of the birds, standing so as directly to face the other, will often raise, and then again lower, the head, some eight or nine times in succession, in a half solemn manner, at the same time opening its gaudy beak, sometimes to a considerable extent, yet all the while without uttering a sound. All this looks very affectionate, but I have often remarked that after one such display and interchange of endearments, the bird that has initiated or taken the leading part in both, turns to another, and repeats, or offers to repeat, the performance—for on such occasions it does not, as a rule, receive much encouragement from the second bird.
The male puffin, therefore—for I hardly suppose it to be the female who acts in this way—would seem to be of a large-hearted disposition. This silent opening of the bill which I have spoken of is, therefore, an accustomed—probably an important—part of the advances made by the one sex towards the other; and here again I have been much struck by the bright
