32 CATALOGUE OF THE BIRDS OF KANSAS. 



Genus HYDROCHELIDON, Boie. 



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

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



Order PYGOPODES. 



Family PODICIPEDIDJE. 

 Genus DYTES, Kaup. 



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

 rare. 



318. D. nigricollis calif ornicus (Heern.) Ridgw. American Eared 

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

 in western Kansas. 



Genus PODILYMBUS, Lesson. 



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

 common ; may occasionally breed in northern Kansas. 



Family COLYMBID^E. Loons. 



Genus COLYMBUS, Linnaeus. 



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

 tory, rare. 





