You save every particle of food and in this way you learn not only cleanliness, but thrift and economy. And you very soon realize how cheaply you can live in camp, and how very much enjoyment you can get for very little money. And as you live in the fresh, pure air of God you find that your own thoughts are clean and pure as the air around you. There is hardly one of the Guide Laws that is not better carried out after you have been living and practising it in camp. _Habits of Animals._--If you live in the country it is of course quite easy to observe and watch the habits of all sorts of animals great and small. But if you are in a town there are many difficulties to be met with. But at the same time if you can keep pets of any kind, rabbits, rats, mice, dogs or ponies you can observe and watch their habits and learn to understand them well; but generally for Guides it is more easy to watch birds, because you see them both in town and country; and especially when you go into camp or on walking tours you can observe and watch their habits, especially in the springtime. Then it is that you see the old birds making their nests, hatching out their eggs and bringing up their young; and that is of course the most interesting time for watching them. A good observant guide will get to know the different kinds of birds by their cry, by their appearance, and by their way of flying. She will also get to know where their nests are to be found, what sort of nests they are, what are the colors of the eggs and so on. And also how the young appear. Some of them come out fluffy, others covered with feathers, others with very little on at all. The young pigeon, for instance, has no feathers at all, whereas a young moorhen can swim about as soon as it comes out of the egg; while chickens run about and hunt flies within a few minutes; and yet a sparrow is quite useless for some days and is blind, and has to be fed and coddled by his parents.