30 



THE COMMON CROW. 



However, as a certain amount of sand or gravel is essential in grinding 

 grain and other vegetable matter, it seems desirable to take it into con- 

 sideration, at least while dealing with the general proportions of the 

 elements of the food. 



The accompanying table shows the number of stomachs examined 

 for each month and the number containing each of the more prominent 

 articles on which the Crow is known to feed: 



Table showing contents of Crow stomachs, by months. 

 [The figures indicate the number of stomachs containing the article named.] 



Month. 



January . . 

 February . 



March 



April 



May 



June 



July 



August... 

 September 

 October... 

 November 

 December. 



U 



53 



23 

 26 

 42 

 364 

 165 

 45 

 24 

 44 

 46 

 18 



1 . 



11 I 2 



45 60 



5 I 23 



4 j 5 



2 ; 



.... 4 



3 



1 



2 



15 



175 



45 



8 



2 



4 



3 



2 



3 



15 

 4 I 

 3 

 1 

 1 

 2 

 3 

 3 













CD 





^ 









ft 





03 





^ 



03 



s 







00 



+s 









9 



c 





» 



H 



6 



21 



2 



10 



1 



16 



1 



36 



23 



358 



9 



157 



3 



42 



1 



24 



4 



40 



9 



42 



6 



17 



10 



30 



31 

 16 

 12 



17 



214 























. A 



•■ 





























9 x 

















9 











3 



r^ CD 

















9 











9 



^'3 



03 















£ 



OS 









2 . 



2 ^ 



•2 



"3 





Month, 







4^ 



9 





cs 6 





2 



05 



.2 





23 



3-d 



o 



03 



•2 





_^ 











CD 



^ 



r^= 



03 



03 



J5S 



rt 



A 







eg 



O 



c 

 pq 



03 



03 



1 



c 



■A 



o 



2 



ft 



ft 



S 1 



cS cd 

 ■ 02 



'-5 

 O 



-a 





3 







8 



13 



20 



10 



3 



1 











February 



1 



2 





5 



3 



8 



1 



2 











March . .'. 



1 



4 



2 



8 



8 



2 







1 













2 



4 



2 



2 



6 



3 





3 



1 











May 



6 

 3 



10 

 4 



6 



13 



3 



3 



3 

 6 



24 

 6 

 3 



11 

 6 

 4 

 1 



1 

 3 



...... 



2 



12 



6 



6 







2 



16 

 12 



2 



3 

 37 

 13 















1 



2 



3 





August 





2 



5 



4 



3 



1 





2 





8 



13 



1 



12 



1 





6 



October 



5 



1 



1 



20 



4 





16 



9 





15 







2 



November 



1 



1 





7 



1 



2 



7 



3 



1 



2 











3 



2 





9 



9 



13 



14 



4 





2 

















The assumption that Crows will eat any available animal food may 

 be allowed to stand as substantially correct, with some important 

 reservations as regards insects, and it remains simply to discover what 

 kinds of animal food are most available, and what preferences are 

 shown when choice is possible. The following table shows the dif- 



