RICHARDSON'S SPERMOPHILE. 



67 



Table showing contents of 18 stomachs of Bicharclson's SpermophUe 

 (Spermophttns richardsoni). 



Cat. 



No. 



220 

 222 



223 

 225 



227 

 233 



234 

 235 

 236 



237 



238 

 239 

 240 

 241 



251 

 257 

 258 



Sex. I Date. 



Locality. 



Percent- 

 age of 

 animal 

 matter. 



1887. 



Aug. 13 Devils Lake, N. Dak 

 Aug. 15 do 



Aug. 15 

 Aug. 17 

 Aug. 17 



Aug. 17 do 



Aug. 24 Bottineau, X. Dak 



Aug. 24 

 Aug. 24 

 Aug. 24 



Aug. 24 



do... 



do ... 



do ... 



.do 



Aug. 24 ' do 



Aug. 24 ! do 



Aug. 24 do 



Aug. 24 ..do 



Aug. 26 do 



Aug. 29 

 Aug. 29 



15 



Percent- 

 age of 

 vegetable 

 matter. 



100 

 80 



95 



100 



100 



100 



99 



100 



Contents. 



Mostly oats ; some herbage. 



A lew small insects ; mouse hair 

 mostly herbage or roots. 



A few bits of insects; grain 

 herbage ; a Polygonum seed. 



Herbage; Chenopodium 

 Solanum seeds and berries 



Half wheat; nearly half green 

 herbage; a few small seeds. 



Oats. 



Mostly barley and seeds of bind- 

 weed; few particles of indeter- 

 minate material. 



Grasshoppers; grain; green foli- 



age. 

 Hair; 



herbage ; 



mostly green 



probably grass. 

 Finely chewed insects (probably 



mostly grasshoppers) ; plants ; 



Chenopodium seeds. 

 Insect remains; shell of black 



beetle; Solanum seeds; small 



seeds: plants. 

 A few insects; a little grain; 



mostly chewed roots. 

 Grasshoppers ; barley ; Polygonum 



seeds; green herbage. 

 i Grasshoppers : grain and herbage 



in about equal amounts. 

 One small feather; chewed leaves 



and seeds; Chenopodium seeds. 

 Mostly barley ; a few Polygonum 

 seeds ; some indeterminate matter. 

 Green herbage ; seeds of Helian- 



thus and Chenopodium. 

 Grasshoppers; green herbage; 



Helianthus and Chenopodium 



