'LAtl 



B 



mutant" female \i> '.">: plwke<l 



A. Expanded tail-feathers of Japanese turtle-dove, T 



:in<l mounted Sept. '20. IHd'.l. 

 15. Expanded win^s and tail of .Inpiini'si- turtlr-dovc " mutant ' tit time <>f .lrat : 



I'.IO'.I. Tlic rcplaccmcii! nf the dark crntcrs nf the \vinn and |MI\- cnvcrt.-* with white is we]] 

 -iliown. The normally dark primaries and nrtriers are here shown more or les- uniformly 

 grayed or white ..... I. The second growth of reetrices. sliown expandol in the lower figure. 

 have prohalily l>eeoiiie slightly darker than in the first feathcTs. shown in tii: A 



