6 Bird - Lore 



observe that the fraud was apparently detected in a moment. The calls of the 

 Crows changed rapidly and, in an instant, every bird left the vicinity, and, cawing 

 loudlv, returned to the woods; nor did I succeed, in spite of the most alluring 

 hoots, in inducing them to return to the attack. 



A comparison of the action of these birds with those of Blue Jays under not 

 dissimilar circumstances shows that the Crows grasped the situation more quickly. 

 The Blue Jays returned, repeatedly striking a mounted Screech Owl, even when 

 after the first onslaught, it hung by wires to the limb on which it had been fast- 

 ened, the birds evidently not realizing that the Owl was a dummy. The Crows, 

 on the other hand, although the first blow did not result in upsetting the Owl, 

 seemed at once to understand that they had been imposed upon and lost no 

 time in retreating. 



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