How to Attract the Birds 



and form its lining, whereas the nuthatches, tit- 

 mice and chickadees, which live in similar homes, 



The chimney swift's wicker cradle which the bird glues to the bricks 



swelter in a lining of fur or feathers, probably be- 

 cause their hardy ancestors, living at the far North, 

 needed warm bedquilts which their more widely 

 travelled descendants are too conservative to discard. 



PROGRESSIVE MOTHERS 



Occasionally a bird is strong minded enough to 

 break away from old traditions. Before this country 

 was settled, the swift also nested in hollow trees ; 

 but after trees began to be cut down and chimneys 

 arose above the roofs of houses everywhere, the birds 

 were quick to perceive that fires are generally out 

 by their nesting season ; therefore, why not take 

 advantage of the innovation ? So completely did 



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