Well, why, in all this time, if these three feathers are so necessary, has he not gotten them? He might reply, “Which of you by taking thought can add as much as one cubit to your stature, to say nothing of three hairs to the top of your head?” By taking time (which is a fine human phrase for giving Nature time), and with the right conditions, you may add the cubit. So the crow may get his feathers. It is not an affair between the crow and his feathers, nor between the crow and Nature. It is wholly Nature’s affair with the crow’s feathers, and so seriously does Nature take it, so careful is she, so systematic, so almost arbitrary about it, that the feathers of crows, like the hairs of our heads, can truly be said to be numbered. Nothing could look more haphazard, certainly, than the way a hen’s feathers seem to drop off at moulting time. The most forlorn, undone, abject creature about the farm is the half-moulted hen. There is one in the chicken yard now, so nearly naked that she really is ashamed of herself, and so miserably helpless that she squats in a corner all night, unable to reach the low poles of the roost. It is a critical experience with the hen, this moulting of her feathers, and were it not for the protection of the yard it might be a fatal experience. Nature seems to have no hand in the business at all; if she has, then what a mess she is making of it! But pick up the hen, study the falling of the feathers carefully, and lo! here is law and order, system and sequence, as if every feather were a star, every quill a planet, and the old white hen the round sphere of the universe. You will put her down reverently, awfully, this hen that you took up with such compassion, and you will say, “Such knowledge is too wonderful for me.” So it is, for the moult means a great deal more than the mere renewal of feathers, just how much more no one seems to know. This much is plain, that once a year, usually after the nesting season, it seems a physical necessity for most birds to renew their plumage. We get a new suit (some of us) because our old one wears out. That is the most apparent cause for the new annual suit of the birds. Yet with them, as with some of the favored of us humans, the feathers go out of fashion, and the change, the moult, is a mere matter of style. But the annual moult, first of all, is Nature’s wise provision for the safety and warmth of the bird. Feathers are not only covering, as our clothes, but also means of locomotion, and, hence, the bird’s very means of life. A year of use leaves many of the feathers worn and broken, some of them through accident entirely lost (as with my crow), and while they might last for two years, or even longer, Nature has found it necessary to provide a new plumage as often as once a year, in order to keep the race of birds at its best.