1 16 



I III. MEXICAN (OTTON-IiOLL WEEVIL. 



Tablb LXVI.- Schedult of stomach examinations of birds which had eaten boll weevils. 





During Janu- 

 ary, Febru- 

 ary, and 

 . ch. 



During During July, 

 April. May, August, and 

 and June. September. 



During Oeto- 

 ber, Novem- 

 ber, and 

 December. 



Species. 



■A 



._ a* 



: a 

 i 5 



fi - 



- 

 2 



at 



.9 



OSS 



X 



- 

 •_ > 

 c > 



-- 

 - z 

 3 .a 



Z 



3. 



fi > 



- -_ 



C oj 



r. 



a . 



_ V 



z ~ 



Z 



- — 



Id 



c 



o r- 



._ B9 



■A 



-j: 



g 



1) ~ 

 9 



S 



si 



- V 



75 



z O 



a 3 



- s. 



- m 



i 



!i 



_ _£ 



- v 

 X. 





48 

 28 

 63 







13 



1 

 10 



1 



i 



1 



6 



38 



10 



91 



22 



5 



2 



2 



3 



14 



1 



84 



11 



1 















2 



5 







1 

 108 

















1 



1 















4 

 5 

 6 



1 

 1 

 1 

 1 



7 



IS 



7 

 8 

 3 

 1 



2 



2 



21 

































10 



7 



1 

 1 



l 



2 

























19 







13 



3 



3 



























































•8 

 92 

 79 

 48 

 52 



1 

 4 

 4 

 10 

 8 



1 

 4 

 5 



18 

 11 



1 







2 

 24 

 49 

 183 

 66 













3 



3 







Ked-winged blackbird (Ageiaiusphaniceus) 



16 



1 



1 



l 



2 

 28 

 12 



V! 







3? 



' i meadow lark (Sturnella neglccta ) 











18 





20 

 2 



1 



1 



101 

 50 



149 



30 

 11 

 40 



64 

 24 

 133 





































R usty blackbird ( Euphagus carolinus) 



Brewer blackbird ( Euphagus cyanocephalus) 



6 

 139 

 36 



32 

 29 



68 



1 



24 



5 



2 

 1 



8 



1 



40 



5 



2 



1 



15 









10 

 5 

 3 



2 

 11 



IS 







1 



19 



7 













2 



? 









3 

 6 









Great-tailed grackle ( Mcgaquiscalus major 



1 



l 





















Savanna sparrow (Passerculus sanduichcnsis, 



2 

 13 



4 













1 



1 









54 



1 



1 





W hite-throated sparrow (Zonotrichia albicollis). 



53 

 25 

 27 

 8 

 10 

 42 



1 

 2 



1 

 1 



1 



1 

 2 

 2 

 2 



1 







9 



1 



1 







5 









































9 

 6 









1 



7 























39 

 64 

 109 

 26 

 5 

 35 

 14 

 25 

 19 

 25 



3 

 2 



18 

 3 

 1 



34 

 5 



11 



4 



2 



19 



3 



1 



638 



52 



68 



















































• 1 

 15 



1 





















1 



l 











1 

























16 























Loggerhead shrike (Lanius ludovicianus) 46 



1 



4 



4 







12 



2 



5 







1 



1 







17 

 9 



1 

 1 



2 

 1 



3 



1 



















1 

 5 



















1 



1 









American pipit (A nthus pcnsiluanicus) 73 



Mockingbird ( Mimus polyglottos) 43 



34 

 2 



120 



2 









8 

 5 

 29 

 7 

 2 



3 



4 



13 



7 

 31 







85 



5 



5 









1 

 5 



1 



Carolina wren ( Thryothorus ludovicianus) 37 



Bewick wren ( Thryomancs bcivicki) 11 



Winter wren ( Xarinus hycmalis) 1 



6 



1 

 1 

 5 



9 

 3 

 2 



7 



1 



2 



1 

 3 







6 























23 



















B lack-crested t it mouse (Bzolophus atricristatus) 









1 

 1 







2 



1 



1 



1 



fi 



1 



1 































It will be noticed that the largest numbers of boll weevils were 

 eaten during the months of July, August, and September, and also 

 that a considerable number are consumed during the hibernating 

 season. The most important birds are those that capture the boll 

 weevil during the winter. According to this table these are the 

 three species of blackbirds, two meadowlarks, six species of native 

 sparrows, the pipit, the three species of wrens, and the two species 

 of titmice, it will be noted that only one of the 108 quail stomachs 

 examined showed remains of the boll' weevil. 



