Well, now, I will tell you what this beautiful bird, the Quezal or Resplendent Trogon, that used to be in King Montezuma's aviary, is like. It is about the size of a turtle-dove, but with the most beautiful, long, curling feathers in its tail, and these beautiful feathers, and all the feathers on its back and breast and on its head, too, are of the most lovely, rich, golden-green colour. Really I don't know whether there is more of gold or of green in them, but there is just the right quantity of each to make them the most beautiful, beautiful feathers you can possibly imagine. It is the tail-feathers that are the most beautiful, for they are so very long--the two longest are much longer than those in a pheasant's tail--but there are some feathers which begin on the back and lap softly round the sides, one a little way off from the other, so that you see their pretty shapes, and these are almost as beautiful, although they are ever so much shorter. But now there is something funny about those long feathers, which I have called the tail-feathers, and that is, that they are not _really_ tail-feathers at all. They look as if they were, but _really_ they are feathers which go _over_ the tail and cover it up, so that the _real_ tail is underneath them. It is like that--though I am sure you never knew it--with the peacock; those beautiful, long feathers which we _call_ the tail are not _really_ the tail, and you will see that, directly, if you watch a peacock when he spreads them out, for, as soon as he does, you will see the real tail underneath, which is nothing very particular to look at. Still, in both these birds the long feathers look so like the real tail that we may very well call them the tail-feathers, and we can always explain about it afterwards, to show how much we know. And, do you know, these beautiful, long, golden-green feathers of the Quezal, which we are going to call the tail-feathers, although we know very well they are not, were so highly valued by these people who used to live in Mexico, that no one was ever allowed to kill the bird, but only to catch it and cut them off and let it go again, so that new ones might grow on it. And only the chiefs were allowed to wear its feathers. And, indeed, there would be no great harm in wearing feathers in hats, if we got them only in that way. Only I cannot think what the little demon could have been about in that country. A law like that must have made him very angry indeed.