PUBLICATIONS OF THE UNITED STATES DEPARTMENT OF AGRICULTURE 
RELATING TO BIRDS. 
AVAILABLE FOR FREE DISTRIBUTION BY THE DEPARTMENT. 
Eleven Important Wild-Duck Foods. (Department Bulletin 205.) 
Mortality Among Waterfowl Around Great Salt Lake, Utah. (Department Bul- 
letin 217.) 
Birds of Porto Rico. (Department Bulletin 326.) 
Propagation of Wild Duck Foods. (Department Bulletin 465.) 
The Duck Sickness in L T tah. (Department Bulletin 672.) 
Some Common Game, Aquatic, and Rapacious Birds in Relation to Man. (Farm- 
ers' Bulletin 497.) 
Food of Some Well Known Birds of Forest, Farm, and Garden. (Farmers' Bulletin 
506.) 
Bird Houses and How to Build Them. (Farmers' Bulletin 609.) 
How to Attract Birds in Northeastern United States. (Farmers Bulletin 621.) 
Some Common Birds Useful to the Farmer. (Farmers' Bulletin 630.) 
Duck Raising. (Farmers' Bulletin 697.) 
How to Attract Birds in Northwestern United States. (Farmers' Bulletin 760.) 
Game Laws for 1917. (Contains the Texts of the Federal Migratory-bird Law; the 
Treaty of 1916 Protecting Birds Migrating Between the United States and Canada; 
the Canadian Migratory-birds Convention Act and Other Matters Relating to the 
Protection of Birds.) (Farmers' Bulletin 910.) 
Plants Useful to Attract Birds and Protect Fruit. (Separate 504 from Year Book 
1909.) 
Our Shore Birds and Their Future. (Separate 642 from Year Book 1914.) 
The Great Plains Waterfowl Breeding Grounds and Their Protection. (Separate 
723 from Year Book 1917.) 
FOR SALE BY THE SUPERINTENDENT OF DOCUMENTS, GOVERNMENT PRINTING 
OFFICE, WASHINGTON, D. C. 
Five Important Wild-Duck Foods. (Department Bulletin 58.) Price, 5 cents. 
Food for Robins and Bluebirds of United States. (Department Bulletin 171.) 
Price, 5 cents. 
Bird Migration. (Department Bulletin 185.) Price, 10 cents. 
Food Habits of Thrushes of United States. (Department Bulletin 280.) Price, 
5 cents. 
Distribution and Migration of North American Ducks, Geese, and Swans. (Bio- 
logical Survey Bulletin 26.) Price, 10 cents. 
Distribution and Migration of North American Shore Birds. (Biological Survey 
Bulletin 35.) Price, 15 cents. 
Birds of Arkansas. (Biological Survey Bulletin 38.) Price, 25 cents. 
Index to Papers Relating to Food of Birds. (Biological Survey Bulletin 43.) Price, 
10 cents. 
Private Game Preserves and Their Future in United States. (Biological Survey 
Circular 72.) Price, 5 cents. 
Three Important Wild-Duck Foods. (Biological Survey Circular 81.) Price, 
5 cents. 
National Reservations for Protection of Wild Life. (Biological Survey Circular 87.) 
Price, 5 cents. 
Explanation of Proposed Regulations for Protection of Migratory Birds. (Biological 
Survey Circular 93.) Price, 5 cents. 
26 
ADDITIONAL COPIES 
OF THIS PUBLICATION MAY BE PROCURED FROM 
THE SUPERINTENDENT OF DOCUMENTS 
GOVERNMENT PRINTING OFFICE 
WASHINGTON, D. C. 
AT 
10 CENTS PER COPY 
