“Maybe that is what these things are that I’ve found, for ever so many days, below the porch of the pigeon-house,” said Tommy, pulling a bunch of paper from his pocket; “I guess the Red Owl meant to live there this winter.” He spread out the paper before Gray Lady, who was now sitting at the table turning over the pages of a large book in red covers. It was a reference book, in two volumes, that she often used to look up stories of the birds about which the children asked. The name of the book was _Life Histories of North American Birds_, and they were written and collected by Major Bendire, who was both one of the Wise Men and an officer in our army. Putting in a mark at the page where Screech Owl began, she closed the book and looked at the contents of the paper. “Yes, Tommy,” she said presently, “these are not only Owl balls, but there is the fur and bones of a mouse in each.” And deftly separating the wads with the point of a pair of scissors and taking out a tiny skull, she motioned the children to look at it through a reading-glass, each one in turn. “Does the Screech Owl live everywhere in the United States?” asked Dave, after he and Tommy had picked out enough of the tiny bones from the fur to piece out the entire skeleton of a mouse. “This same species of Screech Owl that we have here is found all through the eastern part of North America, but there is a Screech Owl, of some sort, to be found in the other parts of the country; thus, there is a Florida Screech Owl; one for California; another for the Rocky Mountains; one for Mexico, and one for Puget Sound, besides several others, and, of them all, the Rocky Mountain Owl is said to be the handsomest. “We have several other owls that live hereabouts and do good work by killing rats, mice, snakes, lizards, etc. Of course, they also eat some birds, but they are so valuable to the farmer that he can ill spare them, and if he cannot, neither can we. Do you realize that it is really the farmer that holds the life of the country in his hand? What good would money and houses and clothes do us if we had no food?—and it is the farmer who, by carrying out the workings of nature, makes food possible. “These birds of prey divide time between them, the Hawk works by day and the Owls at night and in the early dawn; thus, ‘Nature, in her wisdom, puts a continuous check upon the four-footed vermin of the ground.’ “Our little Screech Owls love old orchards and the hollow trees to be found there, and they are well suited to be guardians of the fruit trees. In hard winters, mice and rabbits will often eat the bark of young peach, pear, plum, and apple trees in such a way as to ruin them. Who can keep a constant watch upon them by day and night so well as the Hawks and Owls?—and if they do take an occasional chicken or pigeon, these are more easily replaced than fruit trees.