As the night wears on, the color of our hero changes and his wings harden; until when the sun rises we behold him in the glory of a black uniform with facings of orange and with beautiful glassy wings folded roof-like above his body. (Fig. 339.) Great is the change wrought in his appearance during this one marvelous night, and greater still the change wrought in his habits! He is now no longer a hermit; there are thousands of his kind about him, a fact which he realizes with great joy. So happy is he that he feels as if he must burst if he does not find some adequate means for expressing his happiness in this beautiful world of sunshine. Then suddenly he finds in himself the means of expression and bursts into song. Yet, it is not a song exactly, for he is a drummer rather than a singer. On his body just behind each of his hind wings is a kettle drum. The head to this drum is of parchment thrown into folds and may be seen with a lens if you lift his wings and look closely. (Fig. 340.) Instead of drum sticks he uses a pair of strong muscles to throw the membranes into vibration and there is a complex arrangement of cavities and sounding boards around these drum heads so that the noise he gives off is a great one indeed for a fellow of his size. So fond is he of making music that he has no time to eat or to do aught else but to sound fanfares all the sunshiny day. He is not the only musician on the tree; there are many others and they all join in a swelling chorus that has been described as a roar like that made by the "rushing of a strong wind through the trees."