108 The Wilson Bulletin — Xo. GO. 



probable that a much larger number of localities would show 

 a much more erratic movemient of many of the birds even in 

 neighboring localities, for my experience about Oberlin indi- 

 cated that while the host of a species was late in arrival one 

 might find a few venturesome individuals 'cking out a miser- 

 able subsistence in some particularly favorable spot. Failure 

 to find the spot would result in overlooking the vanguard of 

 the species and thus result in an exceptionally late record. 

 Thus at Oberlin the American "Redstart was represented by 

 only seven individuals until May 13, when individuals were 

 found everywhere in the woods. The same condition occurred 

 with each of the warblers, recorded in late April and early 

 May. If the arrival of the bulk of a species should be taken as 

 the real arrival of that species then all but the first ten on the 

 subjoined list were two or more weeks late in their arrival at 

 Oberlin. 



Of the birds listed above for Oberlin, Ohio, only the Vesper Sparrow 



