CONTRIBUTORS. 21 



cal newspapers in which birds are mentioned, which have 

 been sent to me by many helpers, are too numerous and the 

 sources from which they came too various to be given in- 

 dividual mention here. 



Dr. Frank W. Langdon, Mr. Charles Dury and Dr. Josua 

 Lindahl have contributed notes covering a long series of 

 years in the vicinity of Cincinnati and elsewhere in the state ; 

 and Mr. Wm. B. Haynes, of Akron, has given special at- 

 tention to the shore birds of the natural lakes of that vicin- 

 ity. 



Mr. H. C. Oberholser has been good enough to go over 

 the list of species here recorded, making suggestions and 

 comments which have greatly aided me in the final arrange- 

 ment of the catalogue. His "Birds of Wayne County, 

 Ohio," and Rev. W. F. Henninger's "Birds of Middle 

 Southern Ohio," have been valuable aids in the revision of 

 the work. 



In 1891 Messrs. L. M. McCormick and G. D. Wilder pre- 

 pared a list of the birds of Lorain county, from which I 

 have been able to add not a little to our knowledge of the 

 birds of the northern parts of our state. 



To these gentlemen and to all who have given so freely 

 of their time and notes I wish to tender my grateful thanks. 

 They have made a difficult task possible of accomplishment. 



In addition to the counties represented upon the list given 

 above, the writer has been able to spend a greater or less time 

 in studying the birds in the following counties : Athens, 

 Fairfield, Gallia, Huron, Lawrence, Medina, Meigs, Mus- 

 kingum, Ottawa (islands only), Perry, and Washington. 

 The work in all of these counties, except Huron and Medi- 

 na, was done in company with Rev. W. L. Dawson. At 

 Chippewa Lake, Medina county, Mr. R. L. Baird accom- 

 panied me. Mr. Baird has also been associated with me 

 in considerable of the later work about Oberlin. At the 

 Licking Reservoir, which included parts of Licking, Fair- 

 field, and Perry counties, Messrs. E. J. Arrick and Irving 

 A. Field also participated. Several days were spent in the 

 vicinity of Jefferson, Ashtabula county, with Mr. Robt. J. 



