40 OUR NATIVE RIKDS 



The so-called ox-bows, or old river channel, are the 

 favorite waters of the wood duck. 



Concluding Remarks. I hope that my readers, 

 especially our boys and girls, will experiment with 

 nesting boxes for birds, so that we soon may have 

 more definite knowledge on the subject. The pleasure 

 derived from such work is a rich reward for it. 



Every bird lover should make good use of his experi- 

 ences. Some birds, like our purple martin and the 

 European starling, have become accustomed to use 

 nesting boxes, but most of our native birds have yet to 

 learn to live in the "white man's houses." We must, 

 therefore, not lose patience if our boxes are not at once 

 occupied, but must continue to observe and experiment. 



Magazines like Bird Lore, The Auk, and others will 

 be glad to publish the experience of bird lovers. I 

 have consulted the following publications and refer my 

 readers to them : 



1. Masefield, Wild Bird Protection and Nesting Boxes, Taylor 



Bros., Leeds, England. 



2. Liebe, Nistkasten fur Vogel. Theo. Hoffmann, Gera, Germany, 



One of the best treatises on the subject. 



3. Kobelt, Schutz den Vogeln. Bechtold & Co., Wiesbaden, Ger- 



many. 



4. Voigt, Unsere niitzlichen Gartenvb'gel. Theo. Voigt, Gernrode 



am Harz, Germany. 



5. L. H. Bailey, The Birds and I. College of Agriculture, Cornell 



University, Ithaca, N. Y. 



The first costs about 50c., the other three are pamph- 

 lets which can be had for about 15c. each. No. 5 is 



