BIBLIOGRAPHY. 233 



Ridgway, Robert. Note of Helminthophaga cincinnatiensis. 

 Bull. Nutt. Orn. Club, V. 



1882. 



Wheaton, J. M. Report upon the Birds of Ohio. Geol. Surv. 

 of Ohio, IV. First published separately in 1879. 



1884. 



Coues, Elliott. Key to North American Birds. 

 Langille, Rev. J. H. Our Birds in Their Haunts. 

 Chubb, H. E. Birds and Electric Lights. Forest and Stream, 

 XXII, 26. 



1887. 



American Ornithologists, Union Check-List. 

 Ridgway, Robert. Manual of North American Birds. 



1889. 



Davie, Oliver. Nests and Eggs of North American Birds. 

 Ridgway, Robert. Birds of Illinois. 

 Barrows, Walter B. The English Sparrow. 

 Dwight, Jonathan Jr. The Horned Larks of North America. 



1890. 

 Warren, B. H. Birds of Pennsylvania. 



1891. 

 Keyser, Leander S. Bird-dom. 



1892. 



Bendire, Maj. Charles E. Life Histories of North American 

 Birds. 



Wilcox, E. V. Ohio Agri. Ex. Sta., Bulletin 43, Food of Robins. 



1893. 



Fisher, A. K., M. D. Hawks and Owls as Related to the Far- 

 mer. 



Fisher, A. K., M. D. The Hawks and Owls of the United 

 States. 



Cook, A. J. Birds of Michigan. 



1895. 



Chapman, Frank M. Handbook of the Birds of Eastern North 

 America. 



Barrows, W. B. and Schwarz, E. A. The Common Crow of the 

 United States. 



Beal, F. E. L. Preliminary Report on the Food of Wood- 

 peckers. 



1896. 

 Oberholser, H. C. Birds of Wayne county, Ohio. 



1897. 

 Butler, A. W. Birds of Indiana. 



