no 



The Wir.soN Bulletin — No. GO. 



of subspccific differences because I wish to compare species 

 with species. The numbers refer to the number of individuals 

 actually counted. 



The route traveled was from Oberlin, Ohio, over the Lake 

 Shore and Michigan Southern Railway ; from Chicago over 

 the Xorthwestern and its connecting lines to Portland, Ore- 

 gon, taking the Oregon Short Line at Granger, thus avoiding 

 Ogden. The journey began on May 28th, and ended at Port- 

 land on June 1st. The working time covered the following 

 areas : Oberlin, Ohio, to Elkhart, Indiana ; ]\Iount Vernon, 

 Iowa, to Fremont, Nebraska ; Sutherland, Nebraska, to Raw- 

 lins, Wyoming ; Montpelier, Idaho, to Huntington, Oregon ; 

 Heppner Junction to Portland, Oregon. It will be apparent 

 that the dates indicate that the journey was made while most 

 of the birds were nesting. 



The list which follows is given in the order of the number 

 of individuals recorded for each species : 



Mourning Doves were not only the most numerous in in- 

 dividuals but were the most evenly distributed of the species 

 recorded. The numbers seen during each day increased per- 

 ceptibly as we sped westward, reaching the maximum in 

 Idaho and eastern Oregon — in the desert regions. The pre- 

 ponderance of individuals may be partly accounted for by the 

 size of the bird and the ease with which it mav be identified, 



