INTRODUCTION, 13 
All the domestic varieties seem to have been derived from the 
Rock-pigeon (Columba livia), which is a native of South-eastern 
Europe. 
Fig. 9. 

Beg 
ZA. 
DLA 
ae 1 
F hil 
The Rock-pigeon (Columba livia). 
Fig. 10. 

The Tooth-billed Pigeon (Didunculus strigirostris). 
