In nesting time civilized birds are glad to get the odds and ends of strings and cotton which we give them. They chirp about it while they pull at the twine, as if they were saying, "What a blessing it is to live among civilized people, who give us strings and other things to make our cradles of." [Illustration: Crow Blackbird.] They like to scratch in the hay and chaff for kernels of grain. When you see the birds about the barn-doors, or under the shed at the grain, watch them and notice that they do not really scratch, as at first sight they seem to do, but hop quickly on both feet with their toes spread far apart. They hop so fast that you can scarcely see their feet through the flying chaff. It is hard to be quite certain whether a bird walks or hops when it is after its food on the ground. Some of them, like the sparrows and towhees, have a quick, jerky pace that looks like a very fast run. Some birds never run or hop on their feet. The fly-catchers and humming-birds belong to this class. Yet these birds are not cripples. Their tiny legs are fitted only to hold them on the perch. If they wish to catch an insect the length of their bill away, they will fly to get it, just as if it were across the yard. Their wings are so strong and move so quickly that these birds do not need to walk or run. They sip their honey or snatch flies and spiders while on the wing. All birds are alike in many habits, just as people all over the world have some ways in common. Yet there are some birds who are very different from all others. Indeed, there are so many things to know about them, that it is difficult to know just where to begin. What kind of clothes do birds wear? What do they eat, and when is their meal-time, and how do they fly? How do they make their nurseries or nests, and how do they know just how large these ought to be? Do birds talk and laugh and play at games? What sort of a mother does a bird make, and what do the father birds think of the babies? Do birds have a childhood after their babyhood, and are they allowed by their parents to grow up idle and helpless? Will our wild birds grow tame and trustful if we love and pet them, and do they learn to prefer such food as we eat ourselves? In short, does it pay to cultivate the acquaintance of birds and to think of them as people? We will talk about these things in this little book, and when we are done, perhaps you will wonder that you did not get up earlier and know more about the beautiful little winged people in your yard. [Illustration] CHAPTER IV. HOW BIRDS DRESS. In temperate climates like this birds do not dress in such bright colors as they do in hot countries. Their coats and gowns are plainer. There are few extremes in color here, as there are few extremes in heat or cold.