344 THE BIOLOGY OF BIRDS 



males. The probable truth is that these are the two sides 

 of one shield, and that particular types and exaggerated 

 individuals are sometimes predominantly mind-bodies, 

 while others vindicate their right to be regarded as hkewise 

 hody-minds. 



Finally, it must be recognised that the mentality of birds 

 includes a wealth of feeling, rising in these highly strung 

 creatures to genuine emotion. 



