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Table of Contents

Оглавление

PREFACE

LIST OF MAPS

CHAPTER I

MIGRATION OF BIRDS

CHAPTER II

CAUSE AND ORIGIN OF MIGRATION

CHAPTER III

ROUTES

CHAPTER IV

THE HEIGHT AND SPEED OF MIGRATION FLIGHT

CHAPTER V

ORIENTATION AND ROUTE FINDING

CHAPTER VI

THE DISTANCES TRAVELLED BY BIRDS

CHAPTER VII

MIGRATION AND WEATHER

CHAPTER VIII

THE PERILS OF MIGRATION

CHAPTER IX

EARLY IDEAS OF MIGRATION

CHAPTER X

SUGGESTIONS AND GUESSES

CHAPTER XI

SUMMARY

BIBLIOGRAPHY

INDEX

The Migration of Birds

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