THE TURTLE-DOVE PATTERN IN THE PHYLOGENY OF PIGEONS. 



67 



s Loc. cit., p. 372. This can not be a correct arrangement of the subfamilies. 



common pigeon, indicating common parentage. In blond ring-doves (Streptopelia 

 risoria), which have advanced beyond the turtle-dove, we find in all the .young 

 these rows not only better defined as rows in the first plumage, but in more than 

 half the individuals there are plain lateral spots (see pi. 19, fig. B), generally extend- 

 ing over 3 rings, sometimes 4, at other times only 2. In many young, however, the 



