CONTENTS. 



PYGOPODE^—co»fiiiue<I. 



COLYMBIDJ!;. 



Colymh}i>< ijlacialis. Great Northern Diver 

 ,, arcticus. Black-throated Diver . 

 ,, septentrionalis . Red-throated Diver 



PAGE 



96 

 105 

 112 



PODICIPEDID^. 



Podiceps cristatus. Grreat Crested Grebe 

 ,, griseigena. Red-necked Grebe 

 ,, auritus. Sclavonian Grebe . 

 ,, nigricoUis. Eared Grebe 

 ,, fuviatilis. Little Grebe 



117 

 124 

 128 

 133 

 137 



STEGANOPODES. 



Pelecanidjc. 



Phalaci'ocorax-carbo. Common Cormorant 



„ graculus. Shag . 



Sit'hi hassana. Gannet .... 



143 

 151 

 155 



HERODIONES. 



Ardeid.e. 



Ai'dea cinerea Common Heron 

 ,, p'^irfurea. Purple Heron 

 ,, nlha. Great White Heron 

 ,, garzetta. Little Egret 

 „ htihulcus. Bnff-backed Heron 

 ,, ralloides. Squacco Heron 

 Nycticorax griseus. Night-Heron 

 Arietta minuta. Little Bittern 

 Botaurus stellaris. Common Bittern . 

 ,, lentiginosits. American Bittern 



162 

 172 

 177 



182 

 187 

 191 

 195 

 200 

 206 

 213 



