Martins have been known, when no house was provided for them, to take possession of part of a pigeon house; and no pigeon ever dares to set its foot in the martin's side of the house. The martin is a very courageous and spirited bird, and will attack hawks, crows, and even great bald eagles; he whirls around and around them, and torments them, till, at last, he succeeds in driving them off. This makes the martin a very valuable friend to the farmer, whose chickens he defends from their enemies. The martins are very faithful and affectionate to each other; when the mother bird is hatching her eggs, her mate often sits by her side; and sometimes he will take her place, and send her out to take exercise and get food. He passes a great deal of his time at the door of her apartment, chattering to her, as if he were telling her amusing stories; and then he will sing very softly and tenderly to her, and he does every thing he can to please her. The martin has very strong and large wings, and short legs, that they may not interfere with his flight, which is very rapid. It is calculated by Mr. Wilson that this bird flies as fast as a mile in a minute. Sometimes you may see a martin flying in the midst of a crowded street, so near people that it seems as if they might catch him; and then, quick as thought, he darts out of their reach, and, in less than a minute, you may see him far up among the clouds, looking like a little black speck upon their silver edges." "How happy, Mother," said Frank, "the martins must be, to be able to fly about among the clouds, and travel so far, and go just where they please so easily!" "God has made every living thing to be happy," said his mother; "and in this we see His goodness. Are not you happy, too?" "Almost always, Mother. Sometimes I am not happy." "What is the reason why you are not always happy?" "Why, things trouble me, and I feel cross and impatient." "But if you try to bear with disagreeable things, and conquer your ill-humor, and make yourself patient, are you unhappy then?" "No, Mother; but then I have to try very hard." "But you are happy when you succeed. Now, what is it in you that tries to be good, and is happy when it succeeds?" "It is my mind, Mother." "Would you, Frank, give up your mind for a pair of martin's wings?" "O, no, Mother; but I want my mind, and a pair of wings too." "If you think your mind is better than the martin's wings, my dear, be thankful for the possession of it; and be thankful too that God has allowed you the privilege of making yourself happy by your own efforts, and by the exercise of your thoughts, for they are the wings of your mind. You do not now see a martin in the air; you are only thinking of him; and yet you feel how pleasant it might be to be like him, up among the clouds.