418 University of California Publications in Zoology [VOL. 11 



LEGEND 



O Lesstfian six montkly collections 

 vl7 Sixtoten monthly collections 

 I Complete series f< 



'* c 



or one year 



omplete series for two years 



o^- 



^ 



Fig. A. Map of California showing localities in which collections of 

 western meadowlarks have been made for the purpose of stomach exami- 

 nation. A complete series is a minimum of six birds collected each month 

 in a year. 



Table I, pages 416-417, gives a summary of the material 

 available. 



EXAMINATION OF STOMACH CONTENTS 



On removing the stomach (gizzard) and tag from the cloth, 

 the stomach was carefully cut open, the incision being made with 

 a scissors along the longest axis and through the muscles, starting 

 at the cardiac opening, and the contents emptied upon a glass 



