CORN FOUND IN CROW STOMACHS. 



75 



Table I. — Showing corn in Crow stomachs. 



Month. 



January .. 

 February . 

 March .1.. 



April 



May 



J une 



July 



August ... 

 September 

 October . . . 

 November. 

 December . 



Total 



Number of 

 stomachs 

 examined. 



53 

 23 

 26 

 42 

 364 

 165 

 45 

 24 

 44 

 46 

 18 

 59 



Number 



containing 



corn. 



9U9 



29 

 16 

 11 

 16 

 201 

 62 

 10 

 6 

 20 

 17 

 10 

 46 



Percentage 



containing 



corn. 



444 



Average 

 percentage 

 of corn in 

 stomachs 

 contain- 

 ing; it. 



54.7 



69.5 



42.3 



38.1 



55.2 



37.6 



22.2 



25 



45.4 



30.9 



55. 5 



* 49 



52 



56.7 



35.5 



40.9 



32.1 



38 



37.9 



45.7 



52.7 



48.6 



32 



61.9 



40.49 



Percentage 

 of corn to 

 total food 

 of specie3. 



28.5 

 39.4 

 15 



15.6 

 17.7 

 14.3 

 8.4 

 11.4 

 24 

 18 



17.8 

 48.2 



21.5 



Since the food of Crow nestlings differs in several particulars from 

 that of adult Crows, the two following tables have been prepared 

 showing the amounts of corn eaten respectively by adult Crows during 

 the entire year and by Crow nestlings in April, May, June, and July: 



Table II. — Showing corn in stomachs of ad nit Crows. 



Month. 



N umber of j Number 

 containing 

 corn. 



stomachs 

 examined. 



January... 

 February . 



March 



April 



May 



June 



July 



August . . . 

 September 

 October . . . 

 November. 

 December . 



Total 



53 



23 

 26 

 17 

 69 

 84 

 45 

 24 

 44 

 46 

 18 

 59 



508 



Percentage 



containing 



corn. 



54.7 



69.5 



42.3 



58.8 



73.9 



33.3 



19.5 



25 



45.4 



36.9 



55. 5 



77.9 



Average I 

 percentage i Percentage 



of corn in 

 stomachs 

 contain- 

 ing it. 



.31 



56.7 



35.5 



60.1 



51.6 



46.4 



42 



45.7 



52.7 



48.6 



32 



61.9 



51.5 



ot corn 



for all 



stomachs. 



28.5 

 39.4 

 35 

 35.3 

 38.9 

 15.2 

 8.2 

 11.4 

 24 

 18 



17.8 

 48.2 



2.3 



Table III. — Showing corn in stomachs of nestling Crows. 



Month. 



Number of 

 stomachs 

 examined. 



Number 



containing 



corn. 



Percentage 



containing 



corn. 



Average 

 percentage 

 of corn in 

 stomachs 

 contain- 

 ing it. 



Percentage 



of corn 



for all 



stomachs. 





25 



295 



81 



6 



149 



34 



24 



50.5 



42 



9 

 25.3 

 31.1 



2 2 





12.8 





13.1 









Total 



401 



189 * 47. 1 



* 25. S * 9.3 













Average. 



It appears from these tables that corn forms about one-fourth (25.9 

 percent) of the food of adult Crows, and less than one-eighth (12.2 per 

 cent) of the food of Crow nestlings. 



