TUKTLE DOVE. 



271 



side with the external web, and tlie next two with the ends, 

 white ; legs, toes, and claws, brown. 



The upper figure in the engraving at the head of this sub- 

 ject represents an adult bird ; the lower figure was taken 

 from a young bird of the year. 



The vignette represents in outline the form of the breast- 

 bone of our Turtle Dove of the natural size, and indicates by 

 the depth of the keel the great powers of flight possessed by 

 the birds of this genus. 



