370 APPENDIX IV. 



1900. BEAL, F. E. L. Food of the Bobolink, Blackbirds, and 

 Grackles. United States Division of Biological Survey, 

 Bulletin No. 13. 



An elaborate report containing a full account of the food re- 

 lations of the birds indicated. 



1900. BURNS, FRANK L. A Monograph of the Flicker. The 

 Wilson Bulletin, vol. xii., 0. S. No. 31, April, 1900, pages 



3-82.' 



An eighty-two page monograph bringing together what is 

 known of the flicker. It would be hard to find birds with fewer 

 harmful qualities than downy and hairy woodpeckers and flicker. 

 They eat ants, coleoptera, and other insects. 



1900. CHAPMAN, FRANK M. Bird Studies with a Camera. 

 New York : D. Appleton & Co. 



This well-known book contains much information regarding 

 economic relations of birds. 



1900. CHAPMAN, FRANK M. Bird Slaughter in Delaware. Bird 

 Lore, vol. ii., page 60. 



Note on order for twenty thousand bird-skins placed in Mil- 

 ford, Delaware. 



1900. CHAPMAN, FRANK M. A Note on the Economic Value 

 of Gulls. Bird Lore, vol. ii., pages 10-11. 



Value of gulls in feeding on garbage in New York harbor. 



1900. CHERRIE, GEORGE K. The Egret Hunters of Venezuela. 

 Bird Lore, vol. ii., pages 50-51. 



Account of collection of plumes by natives of Venezuela. 



1900. DIBBLE, EDWARD B. Two Notes by a Young Observer. 

 Bird Lore, vol. ii., page 117. 



Observations on robbing of birds' nests by blue jays, and on 

 feeding of young by horned larks. 



