INTRODUCTION. 
In the preparation of the following Catalogue of Birds, assistance has 
been rendered by several of the naturalists of Cincinnati and vicinity, among 
whom should be especially mentioned, Dr. R. M. Byrnes, Dr. H. H. Hill, 
Mr. Charles Dury, Mr. John W. Shorten and Dr. J. H. Hunt; their notes 
will be found credited with the species to which they refer. I am also under 
many obligations to Mr. William H. Whetsel, of Madisonville, an enthusi- 
astic sportsman and reliable observer, who has made numerous and interest- 
ing additions to my collection. 
Dr. J. M. Wheaton, of Columbus, has kindly furnished me with a copy of 
his list of the Birds of Ohio (1874), and a manuscript copy of Prof. Kirt- 
land’s list of the same (1838), both of which have been of service to nie. 
The classification is that of Dr. Coues, as used in his ‘‘ Key to North 
American Birds;’’ species preceded by an asterisk are known to breed in 
this vicinity, and those with numbers enclosed in brackets are included in 
the list in accordance with their range as defined by the various standard 
works on Ornithology. 
Additions or corrections, of any nature, are earnestly requested and will 
be duly acknowledged. 
WS We Ls 
MADISONVILLE, Hamilton Co., Ohio, April 18, 1877. 
