2 CHECK-LIST OF NORTH AMERICAN BIRDS. 
iB 7o2, C6xo,,Riygr, Csaya 
Geroc. 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. 8. N. ed. 10, I. 1758, 135. 
[eB 7o6.°C Orr R732 °C 8438.4 
Geoc. Dist.— Northern hemisphere. Breeds from the northern 
United States northward. 
4. Colymbus nigricollis californicus (HEERM.). 
American Kared Grebe. 
Podiceps californicus HEERM. Pr. Ac. Nat. Sci. Phila. 1854, 179. 
Colymbus nigricollis californicus Ripcw. Pr. U. S. Nat. Mus. 
VIII. 1885, 356. ; 
[i 707, C612, 0R 7ae@. Cieco.| 
Groc. Dist.— Northern and western North America, from the 
Mississippi Valley westward, southward to Guatemala. 
SUBGENUS PODICEPS LaruHam. 
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 708a, C 613, R 734, C 851.] 
Geoc. Dist.— Southern Texas and Lower California southward 
through tropical America to Paraguay, including the West Indies. 
