168 UNDER THE OPEN SKY 



the portions of Pennsylvania, New Jersey, 

 and Delaware adjacent to Philadelphia. In 

 that year there arose a generation of birds 

 who were, as a whole, noticeably more fear- 

 less of man than was the case very shortly 

 before. The Audubon Society and the Na- 

 ture study movement in the public schools 

 are, I think, chiefly responsible for the 

 change. Sure it is, the new state of affairs 

 is most gratifying to those of us who are 

 watching with sore hearts the disappearance 

 of the wild things we have known and 

 loved. 



But the birds have no monopoly of bril- 

 liant coloration on this splendid August 

 afternoon. 



THE TIGER SWALLOWTAIL 



With all the lazy unconcern of insects 

 about the degree of heat, so long as there is 

 enough of it, there comes floating along 

 through the quivering atmosphere a butter- 

 fly, the most attractive of all our day-flying 

 insects. Broad of wing, striking of color, 

 it seems more than strange that so little of 



