2 CHECK-LIST OF NORTH AMERICAN BIRDS. 



[B 702, C 610, R 731, C 847.] 



Geog. Dist. — North America at large, including Greenland. Also 

 eastern Siberia, and southward to Japan. Breeds in high latitudes, 

 migrating south in winter. 



Subgenus DYTES Kaup. 



Dytes Kaup, Sk. Ent. Eur. Thierw. 1829, 41. Type, Colymbus 

 auritus Linn. 



3. Colymbus auritus Linn. 



Horned Grebe. 



Colymbus auritus Linn. S. N. ed. 10, I. 1758, 135. 

 [B706, C 611, R 732, C 848.] 

 Geog. Dist. — Northern hemisphere. Breeds from the northern 

 United States northward. 



4. Colymbus nigricoUis calif ornicus (Heerm.). 



American Eared Grebe. 



Podiceps californicus Heerm. Pr. Ac. Nat. Sci. Phila. 1854, 179. 

 Colymbus nigricoUis californicus Ridgw. Pr. U. S. Nat. Mus. 

 VIII. 1885, 356. 



[B 707, C 612, R 733^, C 850.] 



Geog. Dist. — Northern and western North America, from the 

 Mississippi Valley westward, southward to Guatemala. 



Subgenus PODICEPS Latham. 



Podiceps Lath. Ind. Orn. II. 1790, 780. Type, by elimination, 

 Colymbus fluviatilis Tunst. 



5. Colymbus dominicus Linn. 



St. Domingo Grebe. 



Colymbus dominicus Linn. S. N. ed. 12, I. 1766, 223. 

 [B 708^, C 613, R 734, C 851.] 

 Geog. Dist. — Southern Texas and Lower California southward 

 through tropical America to Paraguay, including the West Indies. 



