LIST OF VERTEBRATES. 65 



CLASS IV. AVES. THE BIRDS. 



Order XI. PYGOPODES. The Diving Birds. 



Family 22. PODICIPID-ai. The Grebes. 



Podiceps, Latham. 



P. cristatus, Latham. Crested Grebe. Rare migrant. C. H. Storrs. 



Colymbus, Linnaeus. 



C. Holbolli (Reinhardt). Red-necked Grebe. Migrant. C.A.D(nvns. 

 C. auritus, L. Horned Grebe. Migrant. C. A. Downs. 



Podilymbus, Lesson. 



P. podiceps (L.). Diedapper. Dab-chick. Dipper Duck. Migrant. 



Family 23. URINATOIlID.ffi. The Loons. 



TJrinator, Cuvier. 



U. imber (Gunner). Common Loon. Diver. Northern Diver. Rather 

 common summer resident. 



Family 24. ALGID JE. The Auks. 

 Alle, Link. 



A. alle (L.). Dovekie. vSea Dove. Little Auk. Rare visitor. F. H. 

 Herrick. 



Order XIL LONGIPENNES. The Long-winged Swimmers. 



Family 25. LARIDJE. The Gulls. 



Larus, Linnaeus. 



L. argentatus, Briinnich. Herring Gull. Common Gull. Not common 



summer visitor. 

 L. Philadelphia, Ord. Bonaparte's Gull. Rare summer visitor. 

 Sterna, Linnaeus. 



S. paradisaea, Briinnich. Arctic Tern. Occasional summer visitor. M. V. 



B. Knox. 

 S. Antillarum, Lesson. Least Tern. Rare summer visitor. 



Family 26. PHALACROCORACIDJE. The Cormorants. 



Phalacrocorax, Brisson. 



P. carbo (L.). Common Cormorant. Very rare visitor. C. A. Dozons. 

 5 



