THE BEHAVIOR OF THE CROW 201 



4.5 centimeter circles. If quickness of choice can be taken as 

 a measure of the ease of discrimination, it is probable that the 

 crows are capable of distinguishing much smaller differences. 



The crow deserves its reputation. It is an exceptionally 

 interesting subject for the behaviorist and worthy of his greatest 

 skill. As has been indicated earlier in this report, it is planned 

 to observe systematically crows at the Franklin Field Sta- 

 tion, both in the field and in the laboratory, in order that a 

 reasonably complete and reliable description of their behavior 

 may be given. Because of the division of labor among a number 

 of observers, it will be necessary to publish reports from season 

 to season instead of reserving all materials for a monograph. 

 The present paper is indicative of some of the chief character- 

 istics of the bird, and suggestive of experimental difficulties. 

 Another season should prepare us to report on the habits, in- 

 stincts, and development. 



