496 TRAVELS OF A NATURALIST 



Cyanecula suecica, SaxicolcB, Sylviadcc, and other true 

 migrants. 



The disparity, however, was less observable — or less 

 noticed ? — amongst the Waders and Anatidae. Such 

 was to be expected, as opportunities did not occur so 

 frequently. Though many thousands of ducks passed 

 north, we could not find that we could obtain materials 

 for comparing the relative numbers of males and females. 

 We found Wigeon and Pintails already building abun- 

 dantly immediately after leaving Ust Zylma, so closely 

 did such nesting operations follow upon their arrivals. 



J. A. H. B. 



