442 University of California Publications in Zoology [VOL. 11 



Some idea of the average numbers of the common insects, 

 grain, and weed seeds destroyed at each meal by western meadow- 

 larks can be obtained from the following tables, which were 

 computed from the results of stomach examination of birds col- 

 lected in Sacramento and Stockton, California. The average for 

 the day is three times that for each meal. 



NUMBER OF COMMON INSECTS, GRAIN AND WEED SEEDS DESTROYED BY 

 WESTERN MEADOWLARKS COLLECTED AT SACRAMENTO, CALIFORNIA 



February to April, inclusive 



9 



10 



11 



Totals 



Grain 



25 



28 



September to November, inclusive 



Weed 

 seeds 



60 

 61 



155 



65 



37 



3 



200 

 93 

 80 



180 

 15 



949 



2 

 1 



22 



25 



10 

 30 



1 



1 



12 



Av. per bird 2.5 86.2 



2.2 



2.6 



.6 



