visitant; (4) winter visitant; (5) unsettled summer 

 visitant; (6) unsettled winter visitant; (7) transient. 



Now we turn to the question of which terms shall 

 be standardized for the denoting of abundance or rar- 

 ity, for standardization and uniformity are our main 

 aims. Even were the selected and standardized terms 

 minutely incorrect, yet were they universally desig- 

 nated alike and uniformly known under such desig- 

 nation they would certainly serve the purpose well; 

 but since unfortunately there is no such universal ac- 

 ceptance of any one set of terms and since this stand- 

 ard set has yet to be composed and accepted is it not 

 better to compose a set which is etymologically cor- 

 rect? I still believe that the scaled set which I sug- 

 gested in Science, June 14th, 1912, is as good as any 

 that can be had, except that I now believe that the 

 term uncommon can be eliminated. I do not intend 

 to propose it as final but as a beginning. It seems 

 to me that it is a question for thorough though speedy 

 debate and for a reasonably quick decision. The 

 present obscurity of meaning is lamentable and uni- 

 formity is its only cure. 



My terms, ranging from abundance to rarity are: 

 (1) abundant; (2) common; (3) frequent; (4) occa- 

 sional; (5) rare. To these definitely scaled terms 

 I should add one other to complete a full set, viz: 

 irregular, standing for exactly what it means. I 

 think an explanation of its meaning is unnecessary. 

 As a very poor but possibly useful illustration of the 

 use of my terms I will give examples of their appli- 

 cation in regard to species around New York City. 



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