10 INDEX TO PAPERS RELATING TO FOOD OF BIRDS. 



achs of 7 species of woodpeckers. Next the species are taken up separately and 

 the animal and vegetable food and the damage attributed to the birds are fully 

 discussed. 



Tbe report on tongues by Doctor Lucas notes the peculiarities of this organ 

 in the different genera, discusses the value of these characteristics in classifi- 

 cation, and draws conclusions concerning the relation of the form of the tongue 

 to the character of the food. Plates I— III thoroughly illustrate this interesting 

 anatomical essay. 



Bulletin 8. The jack rabbits of the United States. By T. S. 

 Palmer, M. D. 84 pp. 7 pis. 2 figs. 1896. 

 2nd ed. with numerous alterations and additions, including ap- 

 pendix of 5 pages. 88 pp. 7 pis. 3 figs. 1897. 

 The information relating to birds is the same in both editions and occurs 

 on the same page, 44. Eight birds of prey are listed among the natural enemies 

 of jack rabbits. 



Bulletin 9. Cuckoos and shrikes in their relation to agriculture. 



26 pp. 1 pi. 1 fig. 1898. 

 The food of cuckoos. By F. E. L. Beal, B. S. [pp. 7-14, fig. 1]. 



The food of shrikes. By Sylvester D. Judd, Ph. D. [pp. 15-26, 1 



pi. (frontispiece)]. 

 After noting briefly the general habits of the yellow-billed and black-billed 

 cuckoos this bulletin treats their food habits collectively. The almost exclu- 

 sively insect diet is discussed in detail, and a list is given of the species 

 of insects identified in the stomachs. The food habits of the two species of 

 shrikes are treated separately, and lists of the species identified among the 

 prey are given. The report ends with a tabulation of the percentages of prin- 

 cipal food elements by seasons. 



Bulletin 12. Legislation for the protection of birds other than 

 game birds. By T. S. Palmer. 94 pp. 2 pis. (maps). 8 figs. 

 (1 map). 1900. 



Revised edition. 143 pp. 4 pis. (maps). 7 figs. (1 map). 1902. 



The remarks on bird food in this bulletin relate principally to species which, 

 while often used as game, are outside of the ordinary classes of game birds. 

 It is shown that several of these have very beneficial food habits, and their 

 protection is urged. Brief statements of the character of the food of many 

 other species are given in connection with synopses of legislation occasioned 

 by their beneficial or injurious habits. Lists of the species protected and of 

 those specifically exempted from protection in each State and in the Canadian 

 provinces are presented, aiso the full text of Federal, State, and Canadian 

 laws for the protection of birds. 



Bulletin 13. Food of the bobolink, blackbirds, and grackles. By 

 F. E. L. Beal, B. S. 77 pp. 1 pi. (map). 6 figs. 1900. 

 This bulletin contains formal reports on the food habits of the bobolink, the 

 cowbird, and 7 species of blackbirds. The introduction notes the salient fea- 

 tures of the food of the various species and compares them one with another. 

 The individual treatment of the species comprises discussion of their relations 

 to crops, particularly grain (rice in the case of the bobolink), and a complete 



