999 Questions and Answers: A Guide to Success With Poultry, Written and Arranged in the Form Most Helpful to the Fancier and the Market Poultryman, the Amateur and the Expert. E-book. Formato PDF Frank Heck   -  Forgotten Books, 2017  - 

Answer — Yes. There is a shade or two difference in the color and a little white may appear, especially in females. Question — Is the rose comb on the Wyandotte as easy to breed as the single comb on the Plymouth Rock? Answer — There is about the same percentage of good combs found in each breed, but in say 50 birds of equal quality of each breed selected at random the single combs as a lot. Would approach nearer perfection than the rose combs.