CONTENTS 



CHAPTER I 



PAGE 



INTRODUCTION i 



Definition of a Bird, I. Temperature, 3. Definition of various forms of feathers, 3. 

 Colors of feathers, 4. Pterylosis, 6. Moult or renewal of feather covering, 8. Nests and 

 eggs of Birds, 10. Theory of Birds' nests, n. 



CHAPTER II 

 THE ANATOMY OF BIRDS. By FREDERIC A. LUCAS 13 



CHAPTER III 

 GEOGRAPHICAL DISTRIBUTION OF BIRDS 26 



CHAPTER IV 

 THK MIGRATIONS OF BIRDS 33 



CHAPTER V 

 THE CLASSIFICATION OF BIRDS 45 



CHAPTER VI 

 THE ARCH/EOPTERYX, OR LIZARD-TAILED BIRD. Order Archceornithiformes . 53 



CHAPTER VII 

 THE AMERICAN TOOTHED-BIRDS. Orders Hesperornithiformes and Ichtkyornithiformes 56 



CHAPTER VIII 

 THE OSTRICHES. Order Struthioniformes 6 1 



CHAPTER IX 

 THE RHEAS. Order Rheiformes 67 



CHAPTER X 

 THE EMEUS AND CASSOWARIES. Order Casuariifor mes 70 



CHAPTER XI 

 THE TINAMOUS. Order Crypturiformes 78 



