Richardson's spermophile. 



67 



Table showing contents of 18 stomachs of Richardson's Spermophile 

 (SpcrmophUus richardsoni). 



Sex. 



Date. 



do 



1887. 

 Aug. 13 

 Aug. 15 



Aug. 15 



Aug. 17 



Aug. 17 



Aug. 17 

 Aug. 24 



Aug. 24 



Aug. 24 do 



Aug. 24 ! do 



Aug. 24 do 



Aug. 24 l do 



.do 

 .do 

 .do 

 .do 

 .do 

 .do 



Locality. 



Perils Lake. N. Dak 

 do 



Bottiueau. N. Dak . 



Aug. 24 

 Aug. 24 

 Aug. 24 

 Aug. 26 

 Aug. 29 

 Aug. 29 



Percent- 

 age of 

 animal 

 matter. 



15 



Percent- 

 age of 

 vegetable 

 matter. 



100 

 80 



95 

 100 



100 



90 



25 



95 



85 



Contents. 



Mostly oats ; some herbage. 



A tew small insects; mouse hair; 



mostly herbage or roots. 

 A lew bits ot insects; grain; 



hcT'bage; a, Polygonum seed. 

 Herbage; Chenopodium seeds; 



Solarium 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; mostly green herbage; 



probably grass. 

 Finely chewed insocts (probably 



mostly grasshoppers); plants; 



Chenopodium seeds. 

 Insect remains; shell of black 



beetle; Solarium seeds; small 



seeds; plants. 

 A few insects; a little grain; 



mostly chewed roots. 

 Grasshoppers ; barley ; Polygonum 



seeds; green herbage. 

 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; 



Hclianthus and Chenopodium 



seeds. 



