But now I feel sure you will ask why the same brightness which streamed out of heaven, and spoilt the plumage of the Birds of Paradise, should have made the plumage of this Humming-bird so beautiful. Well, it is a difficult question, but perhaps it is because the Humming-bird was thinking of heaven, and wishing to get into it, whilst the Birds of Paradise had got tired of being in heaven and were only thinking of earth. That might have made a very great difference. And _perhaps_ you will say, "If the Humming-birds are sunbeams that have been changed into birds, why should some of them have been made more beautiful afterwards in other ways?" Well, as to that, there are a great many different kinds of Humming-birds (more than four hundred, as I told you), so perhaps they were not quite all of them sunbeams first, and besides, even when a bird has been a sunbeam first, something else might happen to it when it had become a bird. At any rate, if one explanation does not seem satisfactory, there is always the other, and one of them must be the right one--until you are a clever person, which will not be yet awhile. So now we will go on, for there are some other Humming-birds with other explanations waiting. The Glow-glow Humming-bird (I do like that name) is smaller than any of the other three we have talked about, for it is less than half the size of a little wren. Its head and its back are shining green (you will be thinking all the Humming-birds are green, but wait a little!), its breast is white, but its throat--oh, its throat!--what is it? What can it be called? It is a rose that has burst into flame. No, it is a flame trying to look like a rose. No, it is neither of these. It is one of those stars that are of all colours, and change from one to the other as you look at them--from green to gold, from gold to topaz, from topaz to rosy red. Only _this_ star changed into every colour at once, which was wonderful, and as he did that (and this was still more wonderful) he flew all to pieces, and little bits of him were scattered through the whole air, and when the sun rose and shone upon them, they were all Humming-birds, flying about with wings and feathers, and with long Latin names, so that there should be no doubt about it. It was wonderful, wonderful; but yet it was not quite so wonderful as the colours upon this Humming-bird's throat.