APPENDIX IV. 333 



1878. Lyle, David Alexander. The Robins' Food. American 

 Naturalist, vol. xii., pages' 448-453. 

 Habits, quality, quantity. 



1878. Williston, S. W. The Prairie Dog, Owl, and Rattle- 

 snake. American Naturalist, vol. xii., page 207. 



The shore-lark part of food of the owl. 



1879. Fisher, A. K. Small Birds Caught by the Burdock. 

 American Naturalist, vol. x., page 239. 



Humming-bird, yellow-bird, and yellow-rumped warbler caught 

 by burs of burdock. 



1880. Brewer, T. M. The Value of Birds. Transactions Illi- 

 nois State Horticultural Society, 1879, vol. xiii., pages 

 173-178. 



Reprint of an address delivered before the Hingham (Mass.) 

 Agricultural and Horticultural Society, July 19, 1869, on the 

 economic importance of birds. 



1880. Cummings, A. L. Horticultural Ornithology. Trans- 

 actions Illinois State Horticultural Society, 1879, vol. 

 xiii., pages 295-298. 



Discussion of the economic relations of certain of our native 

 birds. 



1880. Forbes, S. A. The Food of Birds. Transactions Illi- 

 nois State Horticultural Society, 1879, vol. xiii., pages • 

 120-172. 



Discussion of the economic value of birds, followed by de- 

 tailed account of the feeding habits of the robin, catbird, 

 brown thrush, wood-thrush, Alice's thrush, and Swainson's 

 thrush ; followed by a detailed account of the stomach contents 

 of these birds. 



1880. Forbes, S. A. The Food of Birds. Bulletin Illinois 

 State Laboratory Natural History, vol. i., pages 80-148. 



A general introduction discussing the necessity of a knowl- 

 edge of bird food and methods of study, with extended records 

 of studies of food of the thrushes and stone-chats. 



