APPENDIX I 



ADDITIONS, SUBTRACTIONS, AND EMENDATIONS. 



Since tie publication of the Qrat edition of the 'Color Key' in 1903, the 

 American Ornithologists' Union has issued the Third Edition (1010) of ita 

 'Check-List of North American Birds.' This includes all approved additions to 

 and changes in tlie preceding edition made since 1903 as well as rulings on a 

 number of eases which were in abeyance at the time the first edition of the 

 'Color Key' appeared. 



Mere changes in nomenclature not affecting the status of a species are 

 given without comment in the preceding Systematic Table, which has been fully 

 revised and brought up to date. To ascertain the correct, current name of any 

 species or subspecies of North American bird the student, after determining 

 its identity in the 'Color Key,' has only to refer to its number in the Syate- 

 matic Table to learn whether any change has been" made in nomenclature. In 

 addition to actual changes in nomenclature due to the detection of errors In 

 earlier names, it should be noted that a third name or trinomial is now em- 

 ployed for each race of a species, and also that an apostrophe is used in con- 

 nection with the names of birds named for individuals. Througliout the 'Color 

 Key,' therefore, alterations should be made when required by these two changes 

 in method. 



All other changes than these simple ones of names are included, with ex- 

 ]>1anation3, In this appendix, and the student is urged to make manuscript 

 cross-references on the pages where such changes occur to avoid their being 

 overlooked, 



As far as possible the language of the original deacriber of the new Bub- 

 Bpeciea of birds is here quoted, while the Ranges are mainly from the A. 0. U. 

 Check-List. 



References to original sources of publication are given only with caaea in- 

 cluded in the first supplement to the Third Edition (1910) of the Check LlBt. 

 In all other instances reference to the original place of description, etc., !■ 

 contained in the 'Check-List.' 



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