I am working on a project and need a single comb, yellow legged, lack of dermal melanin, brown eggs, black in color breed or variety of bird. I need it to introduce extended black into my project breed without crossing too many bad traits into it. I was informed the breeds that would work best would be Jersey Giant or Black Plymouth Rocks. I did not want to deal with the size issues that may come into play with the Jersey Giants. That being said it seems to be a hard task to find Black Rocks. Anyone have Black Rocks or another suggestion that I can cross with?