"In the preface to a former volume[1] I have endeavoured to trace the development of the modern animal story and have indicated what appeared to me to be its tendency and scope. It seems unnecessary to add anything here but a few words of more personal application."The stories of which this volume is made up are avowedly fiction. They are, at the same time, true, in that the material of which they are moulded consists of facts,-facts as precise as painstaking observation and anxious regard for truth can make them. Certain of the stories, of course, are true literally. Literal truth may be attained by stories which treat of a single incident, or of action so restricted as to lie within the scope of a single observation. When, on the other hand, a story follows the career of a wild creature of the wood or air or water through wide intervals of time and space, it is obvious that the truth of that story must be of a different kind.[viii] The complete picture which such a story presents is built up from observation necessarily detached and scattered; so that the utmost it can achieve as a whole is consistency with truth. If a writer has, by temperament, any sympathetic understanding of the wild kindreds; if he has any intimate knowledge of their habits, with any sensitiveness to the infinite variation of their personalities; and if he has chanced to live much among them during the impressionable periods of his life, and so become saturated in their atmosphere and their environment;-then he may hope to make his most elaborate piece of animal biography not less true to nature than his transcript of an isolated fact. The present writer, having spent most of his boyhood on the fringes of the forest, with few interests save those which the forest afforded, may claim to have had the intimacies of the wilderness as it were thrust upon him. The earliest enthusiasms which he can recollect are connected with some of the furred or feathered kindred; and the first thrills strong enough to leave a lasting mark on his memory are those with which he used to follow-furtive, apprehensive, expectant, breathlessly watchful-the lure of an unknown trail.There is one more point which may seem to claim a word. A very distinguished author-to whom all contemporary writers on nature are indebted, and from whom it is only with the utmost diffidence that I venture to dissent at all-has gently called me to account on the charge of ascribing to my animals human motives and the mental processes of man. The fact is, however, that this fault is one which I have been at particular pains to guard against. The psychological processes of the animals are so simple, so obvious, in comparison with those of man, their actions flow so directly from their springs of impulse, that it is, as a rule, an easy matter to infer the motives which are at any one moment impelling them. In my desire to avoid alike the melodramatic, the visionary, and the sentimental, I have studied to keep well within the limits of safe inference. Where I may have seemed to state too confidently the motives underlying the special action of this or that animal, it will usually be found that the action itself is very fully presented; and it will, I think, be further found that the motive which I have here assumed affords the most reasonable, if not the only reasonable, explanation of that action."