32 CATALOGUE OP THE BIRDS OF KANSAS. 



Genus Hydkochelidon, Boie. 

 316. H. lariformis surinamensis (Gmel.) Eidgw. -Black Tern. Mi- 

 gratory; quite common; may occasionally breed in northern Kansas: 



Order PYGOPODES. 



Family PODICIPEDID^. 

 Genus Dytes, Kaup. 



317. D. auritus (Linn.) Ridgw. Horned Grebe. Migratory; very 

 rare. 



318. D. nigrioollis californious (Heern.) Ridgw. American Eared 

 Grebe. Migratory; rare in eastern, common and may occasionally breed 

 in western Kansas. 



Genus Podilymbus, Lesson. 



319. P- podioeps ( Linn.) Lawr. Thick-billed Grebe. Migratory; 

 common; may occasionally breed in northern Kansas. 



Family COLYMBID^.— Loons. 

 Genus Colymbus, Linnaeus. 



320. C. torquatus, Briinn. Great Northern Diver — Loon. Migra- 

 tory, rare. 



