Widmann — A Preliminary Catalog of the Birds of Missouri. 21 



Order PYGOPODES. Diving Birds. 

 Suborder Podicipedes. 



Family Podicipidae. Grebes. 

 [1. Aechmophorus occidentalis (Lawr.) — ^Western Grebe.] 



Podiceps occidentalis. 



Geog. Dist. — Western North America from central Mexico 

 to western Manitoba, Assiniboia, Alberta and British Columbia; 

 eastward casually to Ontario, Wisconsin, Nebraska, Kansas. 

 Breeds from North Dakota northward, chiefly in Assiniboia and 

 Alberta. Winters mainly along the Pacific coast from British 

 Columbia southward. 



It has been taken near Omaha, Nebraska, less than fifty miles 

 north of our state line, also at Lawrence, Kan., about the same 

 distance from the western boundary (November 3, 1887), and 

 probably occurs as an irregular visitant on the Missouri River 

 along our western border. 



2. CoLYMBUs HOLBOELLii (Reiuh.). Holbocll's Grebe. 



Podiceps rubricollis. Podiceps griseigena holboelli. Podiceps holboellii. 

 Podiceps cristatus. American Red-necked Grebe. 



Geog. Dist. — Northern North America, Greenland and eastern 

 Asia. Breeds from lat. 46° in Minnesota (Elbow Lake and 

 Leech Lake) and from northern North Dakota to the Arctic 

 Ocean, and winters in the United States to South Carolina and 

 southern California. 



Was taken in western Missouri by Dr. P. R. Hoy in the spring 

 of 1854 and may still visit our state, but is said to have become 

 rare everywhere. 



3. CoLYMBus AURiTus Linn. Horned Grebe. 



Podiceps cornutus. Dytes auritus. 



' Geog. Dist. — Northern Hemisphere. Breeds from northern 

 Wisconsin and northern Nebraska northward, and winters along 

 the Atlantic and Gulf Coasts and in California, migrating through 

 the United States at large. 



Not recorded from western Missouri, but in the eastern part 

 of the state formerly a fairly common transient visitant in April, 



