EXPLANATIONS. 



1. The five letters, B., R., C., G. and U., each followed by a number, stand respect- 

 ively for Prof. Spencer F. Baird's Catalogue of 1858; Prof. Robert Ridgway's Cata- 

 logue of 1881; Dr. Elliott Coues's Check List of 1882; my Catalogue of 1883; and 

 The American Ornithologists' Union Check List of 1886. The latter has been fol- 

 lowed in this list. The dash after any of these letters shows that the bird is not 

 contained in that list. 



2. The names on the list, whether of species or subspecies, are consecutively 

 numbered from first to last. The species are distinguished by consisting of two 

 terms, the subspecies of three terms, viz.: 



332. Merula migratoria. American Robin. 



333. Merula migratoria propinqua. Western Robin. 



3. The dimensions of the eggs, as given, represent their average length and diam- 

 eter in inches and hundredths of an inch. 



NOTE. May 8th, While this work was passing through the press, a female Florida 

 Gallinule was caught near Topeka, and brought to me alive. See No. 67. 



