VII. AN ANNOTATED LIST OF THE BIRDS OF COSTA 

 RICA INCLUDING COCOS ISLAND. 



By M. A. Carriker, Jr. 



Prefatory Note. 



The nomenclature used throughout this work is the latest and most 

 authentic which I have been able to secure, no names being used 

 unless proposed and approved by the leading ornithologists of this 

 country and Europe. I have followed the rules of nomenclature as 

 adopted by the American Ornithologists' Union, using the Tenth 

 Edition of Linnaeus as a basis, and following the system of trinomial 

 names which has been generally adopted by American ornithologists 

 and also by most of the more prominent of the European systematists. 

 There will doubtless be changes made by Mr. Ridgway in the names 

 of the families upon which he has not yet published, but such changes 

 are taking place all the time and are unavoidable. 



I have endeavored to cite under each species all references to liter- 

 ature which refers directly to Costa Rican specimens, or to critical 

 notes on the same, whether such specimens came from Costa Rica or 

 not, providing they have a bearing on the name of the species as it is 

 now determined to be. 



I have also given all localities at which specimens of each species 

 have been taken when such locality names have not been published in 

 connection with the identical specimens cited. Thus I have cited the 

 specimens in the Collection of the United States National Museum, in 

 Mr. Lankester's Collection, in Mr. Bangs' Collection, and in the Col- 

 lection of the Carnegie Museum, whenever a record of those specimens 

 has not already been published. Notes on breeding, with descriptions 

 of nests and eggs, are given whenever they are of my own collecting, 

 together with something on the habitat and habits of each species, 

 whenever anything worthy of record has been observed. 



I have endeavored to give a brief summary of the history of the 

 ornithology of this most interesting country ; a description of the 

 country from a geographical standpoint ; something on the distribution 

 of bird-life in general; and a tentative arrangement of the different 



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