HOW THE BTTCDR KNOW 



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The robin that migrated early, February 27, photographed 

 through heavy plate glass; snow six inches deep on the ground 



winds, until they lost their way, were exhausted, 

 and fell into the lake. For several days following, 

 thousands upon thousands of birds were washed 

 up on the shores of Lake Michigan, covering 

 stretches of miles, where they were examined closely 

 by many bird lovers. One man published an 

 estimate, based on the number counted in a given 

 space, that half a million birds lay drowned on the 

 west shore of Michigan. Now to reverse this 

 instance, in a lesser degree but coming under my 

 own observation: one spring, about 1900, the birds 



