INTRODUCTION J 



The nomenclature's in the main the same as followed by the 

 American Ornithologists' Union Check-List, but we have copied 

 the order given in Sharpe's " Handlist " as far as it is published. 

 The order followed beyond where his work remains unpublished, 

 is approximately that to be used by Dr. Robert Ridgway in his 

 forthcoming work, and it is through his kindness that we are here 

 allowed to make use of it. We have also made various changes in 

 orthography for the sake of consistency. 



The authors wish to express their sincere thanks to Drs. Walter 

 Faxon and Charles W. Townsend, and to Messrs. William Brewster, 

 George H. Mackay, Henry B. Bigelow, Manton Copeland, Arthur 

 C. Bent, Julius R. Wakefield, Robert O. Morris, Charles E. Ingalls, 

 C. J. Paine, Jr., H. V. Greenough, F. H. Allen, Outram 

 Bangs and others, who have assisted them materially in their 

 work. 



REGINALD HEBER HOWE, JUNIOR, 

 GLOVER MORRILL ALLEN. 



CAMBRIDGE, MASSACHUSETTS. 

 May, 1901. 



