My "own" breed is going to have yellow legs and white ears. So I've run indeed into the sad discovery that yellow skinned/legged chickens will get a bit yellowish ears, instead of white.
I did a (quick and definitely not complete) search among a lot of the well-known chicken breeds, and found only Ancona's and Leghorns to have white ears and yellow legs. (Actually, they've managed to get the ears very white. Some production leghorns still have yellowish ears though.)
Further all yellow skinned breed do not have white ears as a standard and vice versa. Clearly people have run into this problem before. Not good for me, but I'll stick with the bit yellow ears.
This rare breed shows well how yellowish ears look like:http://eng.agraria.org/chicken/biondapiemontese.htm
Since you mentioned about developing a breed, i too would like to develop one. The reason for this post on turquoise blue and
yellow earlobes is to determine if i could breed for either of these two earlobe colors as one of the distinct markers for my breed.
To differentiate my long tail fowl breed from the Phoenix, Yokohama and other long tail fowls.
Thanks for the link to the Bionda Piemontese. The yellow earlobes really look nice to me. I thought it was a breed whose standard earlobe
color is yellow. But the standard requires white earlobes. Is there a breed of chicken where the standard earlobe color is yellow?
If there is none, then this yellow color has not yet been selected for and I think very rich yellow earlobes would be possible.
I will be breeding for big rounded earlobes as well. Both rich yellow and turquoise blue color on big round earlobes would be nice, i imagine.
Except for the Silkie, it is surprising that no other breeds of chicken were developed to have blue earlobes. And for the yellow
earlobes, it seems nobody was interested in developing more intense yellow color.
Philippine Long Tail Fowl-Sarimanok Breed Development Project http://mboard.pcarrd.dost.gov.ph/forum/viewtopic.php?pid=98638#p98638
I've mixed bred a Silkie with a bantam, and did get both blue ears and white. From the 4 offspring, 3 had blue ears, 1 white.
I do think that for decent blue ears you will always need Fm. Perhaps "gypsy face" would also do the trick.
Good to know that when outcrossed, the blue expressed. For darker blue earlobes, yes with Fm, the increased melanin pigmentation
helps absorb the longer wavelengths of light allowing for more pure blue color/wavelength. The Fm though makes the comb and wattles dark,
not bright red. If the blue trait is polygenic, then maybe better blues, than the light one, in non Fibro melanotic fowls can be developed.
It won't be as dark as in Fm though i suppose. But as can be seen in your pic above, even in Fm it does not hold that the earlobes
will always be blue. Fm can have predominantly white earlobes. Thanks Manok for sharing about your Silkie cross.