The Migration of Birds
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Contents
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Language
English
ISBN
Unknown
THE MIGRATION OF BIRDS
PREFACE
CONTENTS
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
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