ANALYSIS OF THE TWO EDITIONS. 9 



Aside from those modifications which affect the ornithological or scientific status 

 of the " Check List," the changes in nomenclature are numerous and in many cases 

 radical. Without counting merelj- literal changes in the spelHng of words, nominal 

 changes are made for one or another seeming gbod reason in upwards of 150 cases. 

 In probablj^ not more than 30 of these, however, is the ornithological status of any 

 bird modified ; the changes being simply nomenclatural. 



This portion of the subject is concluded with the following table, showing the 

 number of birds ascribed to North America by several authors who have published 

 complete lists from 1814 to the present 3-ear. 



SUMMARY COMPARISONS. 



Total of Nortli American Birds given by Wilson 



* Fide Baird : I have not made the count myself. 



t The number is ostensibly 738 ; but 5 numbers are duplicated in printing, and 1 species is not 

 numbered, making 744 ; of which 22 are admitted to be extra-limital, but enumerated. 



t Total of numbered species in the body of the Check List 635; actuai«Auraber of species and 

 subspecies 750 ; with 28 additional in the Appendix, making 778. 



§ Total of numbered species in the Catalogue 764 ; actual number of species and^subspecies 924 ; 

 of which 37 are admitted to be extra-limital, for all that is known to the contrary ; and several 

 others do not appear to be fully established as North American. 



1 Being the 778 of the orig. ed., minus 10 subtracted, plus 120 added, = 888. 



Note. Mr. Ridgway's Catalogue contains the following 52 names of birds which I do not admit 

 in the Check List, for reasons which may be inferred from the remarks set against each of tliem. 

 But the Mexican (not insular) species may all be expected over our border ; and the recognition of 

 subspecies in some cases depends upon the perspective in which we may elect to view them. 



1. Harporhynchus graysoni. Extra-limital. Socorro Is., NW. Mexico. 



2. Regulus obscurus. ExtraJimital. Guadalupe Is., Lower California. 



3. Regulus cuvieri. "Pennsylvania" (Audubon). Not since identified. 



4. Parus meridionalis. Extra-limital. IMexico. Since found in Arizona. 



5. Certhia familiaris mexicana. Extra-limital. Mexico. 



6. Salpinctes ohsoletus gundalupensis. Extradimital. Guadalupe Is. 



7. Tknjomanes brevicauda. Extra-limital. Guadalupe Is. 



8. Troglodytes insularis. Extra-limital. Socorro Is. 



9. Parula pitiayumi insularis. Extra-limital. Socorro Is. 



10. Perissoglossa carhonata. " Kentucky " (Audubon). Not since identified. 



11. Dendrosca moniana. " Pennsylvania " (Wilson). Not since identified. 



12. Wilsonia minuta. "New Jersey " (Wilson). Not since identified. 



13. Setophaga miniata. " Texas " (Giraud). Doubtless. 



14. Ergaticus ruber. " Texas " (Giraud). Doubtless. 



15. Basileuterus culicivorus. " Texas " (Giraud). Doubtless. 



