Wyoming Birds. 19 



19. The Relation of Sparrows to Agriculture : Sylvester D. Judd. 



Biological Survey — Bulletin No. 15. 



20. The Bobwhite and Other Quails of U. S. in Their Economic Re- 



lations: S. D. Judd. Biological Survey — Bulletin No. 21. 



21. Birds as Weed Destroyers: Sylvester D. Judd. Yearbook, De- 



partment of Agriculture, 1908. 



22. Three Important Wild Duck Foods: W. L. McAtee. Biolog- 



ical Survey — Circular No. 81. 



23. Our Grosbeaks and Their Value to Agriculture : W. L. MIcAtee. 



Farmers' Bulletin 456. 



24. Our Vanishing Shorebirds : W. L,. McAtee. ' Biological Sur- 



vey — Circular No. 79. 



25. Index to Papers Relating to the Food of Birds : W. L. McAtee. 



Biological Survey — Bulletin No. 43. 



26. Relation of Birds to Grain Aphides : W. L. McAtee. Year- 



book, Department Agriculture, 1912. 



27. The Horned Larks and Their Relation to Agriculture: W. L. 



McAtee. Biological Survey — Bulletin No. 23. 



28. The North American Eagles and Their Economic Relations : H. 



C. Oberholser. Biological Survey — Bulletin No. 27. 



29. Cuckoos and Shrikes in Their Relation to Agriculture : Beal 



and Judd. Biological Survey — Bulletin No. 9. 



30. Some Common Game, Aquatic, and Rapacious Birds in Rela- 



tion to Man: McAtee and Beal. Farmers' Bulletin 497. 



31. Food of Some Well-known Birds of Forest, Farm, and Garden : 



Beal and McAtee. Farmers' Bulletin No. 506. 



32. Bulletin No. 20, State Geological and Natural History Survey of 



Connecticut, 1913. 



