B. 



\dult male two-barred rock-pigeon, Cdumba livia. X 0.4. Nov L909. From 

 tteCaves of SoZty, Scotland, 1908 This bird has a * 



Ad^SSe'SSSd wild rock-pigeon, C. affinis. X 0.4 \. rding to , 



tSS only a variety of C. tfrfa. Nov. 1909. From Cav, r urty, 



Scotland, (1908). 



