Corbie kept them busy, for they were quick to learn that, when he opened his beak and said, "Kah," it was meal-time, even if he had had luncheon only ten minutes before. His throat was very red and very hollow, and seemed ready to swallow no end of fresh raw egg and bits of raw beef and earthworms and bread soaked in milk. Not that he had to have much at a time, but he needed so very many meals a day. It was fun to feed the little fellow, because he grew so fast and because he was so comical when he called, "Kah." It was not long before his body looked as if he had a crop of paint-brushes growing all over it; for a feather, when it first comes, is protected by a little case, and the end of the feather, which sticks out of the tip of the case, does look very much like the soft hairs at the end of a paint-brush, the kind that has a hollow quill stem, you know. After they were once started, dear me, how those feathers grew! It seemed no time at all before they covered up the ear-holes in the side of his head, and no time at all before a little bristle fringe grew down over the nose-holes in his long horny beak. He was nearly twenty days old before he could stand up on his toes like a grown-up crow. Before that, when he stood up in his nest and "kahed" for food, he stood on his whole foot way back to the heel, which looks like a knee, only it bends the wrong way. When he was about three weeks old, however, he began standing way up on his toes, and stretching his leg till his heels came up straight. Then he would flap his wings and exercise them, too. Of course, you can guess what that meant. It meant--yes, it meant that Corbie was getting ready to leave his nest; and before the Brown-eyed Boy and the Blue-eyed Girl really knew what was happening, Corbie went for his first ramble. He stepped out of his nest-box, which had been placed on top of a flat, low shed, and strolled up the steep roof of the woodshed, which was within reach. There he stood on the ridge-pole, the little tike, and yelled, "Caw," in almost a grown-up way, as if he felt proud and happy. Perhaps he did for a while. It really was a trip to be proud of for one's very first walk in the world. But the exercise made him hungry, and he soon yelled, "Kah!" in a tone that meant, "Bring me my luncheon this minute or I'll beg till you do." The Brown-eyed Boy took a dish of bread and milk to the edge of the low roof, where the nest-box had been placed, and the Blue-eyed Girl called, "Come and get it, Corbie." Not Corbie! He had always had his meals brought to him. He liked service, that crow. And besides, maybe he _couldn't_ walk down the roof it had been so easy to run up. Anyway, his voice began to sound as if he were scared as well as hungry, and later as if he were more scared than hungry.