380 LIST OF PLATES. 



Plate CXXXV. 

 Fig. 295. The Fork-tailed Petrel (Thalassidroma leachi). 

 296. The Laughing Gull (Larus atricilla). 



Plate CXXXVI. 

 Fig. 297. The Large Shearwater, young (Puffinus obscurus). 

 298. Ditto, adult. 



Plate CXXXVII. 

 Fig. 299. The Great Loon (Colymbus glacialis). 



300. The Red-throated Loon (Colymbus septentrionalis). 



Plate CXXXVIII. 

 Fig. 301. The Arctic Puffin (Mormon arcticus). 

 302. The Sea Dove (Mergulus alle). 



Plate CXXXIX. 

 Fig. 303. The Black Guillemot (Uria grylle). 

 304. The Razorbill (Alca torda). 



Plate CXL. 

 Fig. 305. The Horned Grebe (Podiceps cornutus). 

 306. The Crested Grebe (Podiceps cristatus). 



Plate CXLI. 

 Fig. 307. The Red-necked Grebe (Podiceps rubricollis). 

 308. The Dipper (Hydroka carolinensis). 



