Familiar Studies of Wild Birds 



aging. So rapidly do the young warblers 

 mature that in seven days they are fairly well 

 feathered. When the young in the hillside 

 bush were eight days old, I decided to photo- 

 graph them; but no sooner had I touched the 

 nest than all four youngsters hopped out, and 

 fluttered in as many directions. Two days 

 later they could fly well. 



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