官方藏书 / Environmental_Issues / The Migration of North American Birds (1935)

The Migration of North American Birds (1935)

Frederick Charles Lincoln · Environmental_Issues · 18 章

目录

THE MIGRATION OF NORTH AMERICAN BIRDS[1]CONTENTS INTRODUCTION THEORY OF PHOTOPERIODISM NOCTURNAL AND DIURNAL MIGRATION SEGREGATION DURING MIGRATION LONG-DISTANCE MIGRATIONS ARCTIC ROUTES EVOLUTION OF MIGRATION ROUTES VERTICAL MIGRATION VAGRANT MIGRATION EXHAUSTION INFLUENCE OF THE WEATHER ON MIGRATION MIGRATION OF THE YELLOW-BILLED LOON CONCLUSIONS BIBLIOGRAPHY[4]INDEX THE FULL PROJECT GUTENBERG™ LICENSE