THE EXTENSION rat 
Winter feeding of birds. 
Making bird houses. 
Eeonomie relations of hawks and owls. 
Our native sparrows. 
Economie status of different kinds of blackbirds. 
Study of bird songs and notes. 
How to learn to recognize our birds afield. 
Birds in literature. 
The use of birds in paintings. 
Relation of the milliner’s trade to bird life. 
Adaptive coloration in birds. 
Dangers to nesting birds in our vicinity. 
Materials used by birds in the construction of nests. 
Care of young birds by parents. 
LITERATURE AND OTHER MATERIALS HELPFUL IN 
BIRD STUDY IN NORTH DAKOTA. 
Manuals and Guides for identifying birds: 
Handbook of Birds of the Western United States. By 
Florence M. Bailey. Houghton, Mitfin & Co., Bos- 
COME INIASS A Gee iow b Bicoa score are at chin st akshome eloustensrenceke, arenes $3.50 
Handbook of Birds of Eastern North America. By 
Frank M. Chapman. D. Appleton & Co., New York 3.50 
Color Key to North American Birds. By Chapman & 
Reed. Doubleday Page & Co., New York ........ 2.50 
Birds of Eastern North America. By Chester A. Reed. 
Doubleday, Page: '& Co., New. York... vo. 2 ac.0 oe plets 3.00 
mandepirdsa: Chester A Reed) 4:5 sas soe citacie oe tera sss Bi 3) 
Water sbirds'> ‘Chester Av Reed: © .....ccccn sos cae 1.00 
Chas. K. Reed, Worcester, Mass. 
How to Know the Wild Birds. By D. Lange 
Northwestern School Supply Co., Minneapolis, Minn. .25 
Birds of the West. By Charles E. Holmes 
Hammond & Stephens Co., Fremont, Nebraska. .: 1.00 
Books upon Special Topics for Teachers and Adults: 
Our Native Birds: How to Protect them and Attract 
them to Our Homes. By D. Lange. The Macmil- 
Neat C ORIN G Wri os OU Ka «Siete oc arohnt ares ho wicivel » Biker ohemetateta chet 1.0U 
Birds in Their Relation to Man. By Weed and Dear- 
born. Lippincott & Co., Philadelphia, Pa. ....... 2.50 
Useful Birds and Their Protection. By Edw. H. For- 
bush. Mass. State Board of Agriculture, Boston, 
VIED S'S Ratttiouet ieee, car coerce: ia olan auclnie te ake's aheiitclianensalens apart eens 2.00 
Bird Day: How to Prepare for it. By C. A. Babcock 
Silver= Bundett c-Co;, New oVOrk 6 oo. kerr « onsen .50 
Methods of Attracting Birds. By Gilbert H. Trafton 
Houghton, Mifflin & Co., Boston Mass. ......... ids) 
Nature Study and Life. By C. F. Hodge 
Cinta CcaCom Boston «Massari toes aiiets eave e aesaets 150 
