340 APPENDIX IV 



1881. Forbes, S. A. Supplementary Report on the Food of the 

 Thrush Family. Transactions Illinois State Horticul- 

 tural Society, 1880, vol. xiv., pages 106-126. 



Comparison between earlier and more recent tables of the 

 food of the thrushes of Illinois (Transactions Illinois State 

 Horticultural Society. 1871). vol. xiii.. pages 120-172), with addi- 

 tional notes on tbe food of this family, followed by a detailed 

 account on the food of the bluebird. 



1881. Lock WOOD, Saaiuel. The Eastern Snow-Bird. Ameri- 

 can Naturalist, vol. xv., page 524. 



Note on exportation as a trade. 



1882. Allen, C. A. The Birds. Xew Hampshire Agricultural 

 Report. 1881. pages 269-282. 



Discussions on the following topics : Useful birds ; warblers, 

 fly-catchers, swallows, creepers, woodpeckers, and thrushes. 

 Singular habits of birds: the cow bunting. Birds injurious to 

 farmers, a list comprising the crow and blue jay, species of 

 hawks (Cooper's, duck, pigeon, sparrow, sharp-shinned, gos-, 

 red-tailed, red-shouldered), and two species of owls (horned 

 and eared). Plumage birds: descriptions of some of the 

 brightest-colored birds occurring in New Hampshire. 



1882. Forbes, S. A. The Ornithological Balance Wheel. 

 Transactions Illinois State Horticultural Society, 1881, 

 new series, vol. xv.. pages 120-131. Extract Report State 

 Horticultural Societ}^, Michigan. 1881, page 203. Pacific 

 Rural Press, January 21, 1882. Shawnee News, Febru- 

 ary 13, 1882. 



Relations of birds to army-worms, canker-worms, and chinch- 

 bugs. 



1882. King, F. H. Economic Relations of Wisconsin Birds. 

 Geological Survey of Wisconsin, vol. i., pages 441-610. 



An elaborate report giving results of investigations of many 

 birds. 



