n. 



EXPLANATIOX OF TERMS USED IN DESCRIBING THE 

 EXTERNAL FORM OF BIRDS. 



»^t 



Turdus migralorlus, I. 



REFERENCES TO THE FIGURE. - 



N. B. In the figure the adjacent regions are separated by a double bar, with the letters be- 

 longing to each affixed. 



A. The body in general. 



B. The region of the head. 



C. " " " neck. 



D. " " " trunk. 



E. The region of the tail. 



F. ' wings. 



G. " " " legs. 

 H. The feathers. 



Note. — I am under obligations to Professor SundeTall of Stockholm and Dr. Sclater of London for asxistance 

 In correcting and improving the present article.— S. F. Bairo. 



