BIBLIOGRAPHY OF ECONOMIC RELATIONS OF BIRDS 
177 
This well known book contains much information regard- 
ing economic relations of birds. 
1900. Chapman, Frank M. Bird Slaughter in Delaware. 
Bird Lore, v. II, p. 60. 
Note on order for 20,000 bird skins placed in Milford, 
Delaware. 
1900. Chapman, Frank M. A Note on the Economic Value 
of Gulls. Bird Lore, v. II, pp. 10-11. 
Value of gulls in feeding on garbage in New York harbor. 
1900. Ciierrie, George K. The Egret Hunters of Venezuela. 
Bird Lore, v. IT, pp. 50-51. 
Account of collection of plumes by natives of Venezuela. 
1900. Dibble, Edward B. Two Notes by a Young Observer. 
Bird Lore, v. IT, p. 117. 
Observations on robbing of birds’ nests by blue jays, and 
on feeding of young by horned larks. 
1900. Dutcher, Wm. The Bird Protection Fund. Bird 
Lore, v. II, pp. 60, 90. 
Fund of $477 raised for protection of gulls and terns. 
Arrangements being made for wardens to enforce laws. 
1900. (Editor.) Sparrows Eat Grapes. Gardening, v. IX, 
p. 29. 
Injury to grapes by English sparrows. 
1900. Hutchins, John. The House Wren as a Depredator. 
Bird Lore, v. II, pp. 89-90. 
Wrens pierce eggs of chipping sparrows and throw them 
out of nest, also persecute other birds. 
1900. Lemmons, Isabella McC. Notes on the Food of the 
Chickadee and the Screech Owl. Bird Lore, v. II, 
p. 59. 
Chickadees observed tnking“tiny black insects” (proba- 
bly aphid eggs) from willow. Screech owls’ stomachs full of 
harvest flies “in the pupa form in which they leave the 
earth.” 
