TWELVE WINTER BIRDS. 



285 



by the settlement of the country, could be given, but 

 let us now note a few of the changes in habits which our 

 native birds have adopted since the white man came 

 and so lead up to one discovery in particular which 

 the shrikes or butcher birds have made and put to use. 



f 



Fig. 79 Dick-cissel or Black-throated Bunting. (After Judd.) 



The chimney swifts, before the advent of civilized 

 man, nested and roosted in hollow trees, but these 

 trees becoming' scarce and chimneys frequent, and 

 possibly more to their liking, they in time forsook, 

 almost wholly, the former for the latter. 



