HYPOTHETICAL LIST. 



The following list of species which have not been, as yet, positively reported 

 from the State, is composed of those forms which have been taken in neighboring 

 States, or whose known range seems to include Indiana. Some of them, it will be 

 noticed, are of very rare or accidental occurrence in the locality where they have 

 been found, and possibly may not be found at all within our limits. For the 

 sake of abbreviation references are made as follows : 



Ridgway Cat. Ridgway's Catalogue of the Birds of Illinois, Bulletin 

 No. 4, Illinois State Laboratory of Natural History. 



Ridgway, 111. Orn. Ridgway 's Ornithology of Illinois, 1889. 



Ridgway Manual Ridgway's Manual of North American Birds, Philadel- 

 phia, J. B. Lippincott & Co., 1887. 



Gibbs Gibb's Annotated List of the Birds of Michigan, Bulletin of the U. S. 

 Geological and Geographical Survey of the Territories, Vol. V, No. 3. 



Wheaton Dr. Wheaton's Report on the Birds of Ohio, Geological Survey of 

 Ohio, Zoology and Botany, Vol. IV. 



Beckham Beckham's List of the Birds of Nelson County, Kentucky; Ken- 

 tucky Geological Survey, 1885. 



Nelson, N. E. 111. Nelson's Birds of Northeastern Illinois, Bull. Essex 

 Institute, Salem Mass., 1876. 



Nelson, S. 111. Nelson's Notes upon Birds observed in Southern Illinois, 

 between July 17 and September 4, 1875, Bull Essex Institute, June, 1877. 



FAMILY PODICIPID^E. GREBES. 



GENUS COLYMBUS'LiNN^us. 

 Subgenus COLYMBUS. 



1. Colymbus holboellii (Reinh.). HOLBCEU/S GREBE. 



Illinois, rare winter resident (Ridgway Cat., p. 203); Ohio, rare migrant 

 (Wheaton, p. 566) ; Michigan, rare (Gibbs, p. 496). 



FAMILY URINATORID.E. LOONS. 



GENUS URINATOR CUVIER. 



2. Urinator arcticus (Linn.}. BLACK-THROATED LOON. 



Illinois and Wisconsin, rare winter visitor (Nelson N. E. 111., p. 150) ; Ohio, 

 rate visitor (Wheaton, p. 565) ; Michigan, rare (Gibbs, p. 496). 



