Winter Feeding of Wildlife on Northern Farms. (Miscellaneous Publication 159M. ) 
*Bird Migration. (Department Bulletin 185D.) 10¢ 
*Eleven Important Wild-Duck Foods. (Department Bulletin 205D.) 5¢ 
*Propagation of Wild-Duck Foods. (Department Bulletin 465D.) 10¢ 
*Migration Records from Wild Ducks and Other Birds Banded in Salt Lake Valley, Utah. 
Department Bulletin 1145D.) 5¢ 
*Food and Economic Relations of ‘North American ‘Gnehes. ‘(Department Bulletin 1196D. ) 
*Food BG ie: of Some Winter Bird Visitants. (Department Bulletin 1249p.) 10¢ 
*Food of American Phalaropes, Avocets, and Stilts. (Department Bulletin 1359D.) 10¢ 
*The Magpie in Relation to Agriculture. (Technical Bulletin e4T.) 10¢ ‘ 
*Our Migrant Shorebirds in Southern South America. (Technical Bulletin 26T.) 5¢ 
*Returns from Banded Birds, 1923 to 1926. (Technical Bulletin 327.) 20¢ 
*Wild Birds Introduced or Transplanted in North America. (Technical Bulletin 
6lT.) 10¢ 
*Wild-Duck Foods of North Dakota Lakes. (Technical. Bulletin 2217.) 15¢ 
*Western Duck Sickness: A Form of Botulism. (Technical Bulletin 4117.) 10¢ 
(For additional titles write to Superintendent of 
Documents, Washington, D. C., for Price List 39, 
on Birds and Wild Animals, sent free.) 
‘Mimeographed Leaflets of Biological Survey 
(Copies of any of these will be sent free on request 
addressed to the Biological Survey, Department of 
Agriculture, Washington, D. C.) 
Bi-159. Publications on Attracting Birds. 
Bi-160. Dealers in Devices for Attracting Birds. 
Bi-1/5.. Publications on Cage Birds. 
Bi-2043. Publications of Interest to Game Breeders. 
Bi-259. Dealers in Wild-duck Food Plants. 
Bi-l58. Dealers in Game and Ornamental Birds. 
Bi~92e. Some Suggestions for Bird Fiéld Trips. 
Bi-1226a Bird Refuges and Game Preserves Adminis tered by the Bureau of 
Biological Survey. 
Bi-lees’. Food Habits of Fish-eating Birds. 
Bi-leSl. Preliminary Report on Study of Raven's Food. 
Bi-129/. Winter Food of the Ruffed Grouse in the Northeast. 
Bi-1326. Planting for Wildlife in the Gorn Belt. 
Bu-ljey. Hlanting for Wildlate an, the Coston Belt. 
Popular Books for the Identification of North American Birds 
Ashbrook, F..G. Birds of America: A Bird Guide (3 Vols., RedenBaiwer ane 
Green). Whitman Publishing Co., Racine, Wis. 1lO¢ each. 
Bailey, F. M. Handbook of Birds of the Western United States. Fabricoid, $6. 
Houghton Mifflin Co., Boston, Mas 
Chapman, F. Me Handbook of Birds of astern North America. (@iowaemeiie 
D. Appleton-Century Co., New York City. 
Coues, Biliott, Key to North American Birds, 6th ed., 2 vols. $15. The Page 
Cos, Boston.) Macs. 
az 
