BIBLIOGRAPHY OF ECONOMIC RELATIONS OF BIRDS 
179 
1901. Herrick, Francis Hobart. The Home Life of Wild 
Birds: a New Method of the Study and Photography 
of Birds. New York: G. P. Putnam’s Sons, 1901. 
A beautiful book of 148 large pages giving methods of 
photographing birds at close range, and results of study of 
nesting habits. Notes on food of nestlings of several species. 
1901. Miller, Olive Thorne. The First Book of Birds. 
Boston: Houghton, Mifflin & Co, 1901. 
In this excellent book for children there is considerable 
discussion of economic relations, one division of the book 
being devoted to the relations of birds to man. 
1901. Miller, Olive Thorne. The Second Book of Birds: 
Bird Families. Boston : Houghton, Mifflin & Co., 
1901. 
An illustrated account of the families of North American 
birds, with numerous references to feeding habits. 
1901. Newkirk, Garrett. For Our Encouragement. Bird 
Lore, v. Ill, pp. 183-184. 
Increase of birds in Missouri because of bird protection. 
1901. Palmer, T. S. Some Fundamental Principles of Bird 
Protection. Bird Lore, v. Ill, pp. 79-81. 
An admirable discussion of principles on which laws are 
based. 
1901. Peabody, P. B. Saw-Whet Homes. Bird Lore, v. 
Ill, pp. 55-58. 
Account of nests of saw-whet owls in flicker holes. Evi- 
dences of mice and small birds as food. 
1901. Smith, Robert Windsor. Food and Gravel. The 
Wilson Bulletin No. 34, v. XIII, O. S. March 30, 1901, 
pp. 16, 17. 
Song sparrow has much gravel in stomach; robin more 
dirt than gravel; seed-eating birds require it for grinding. 
