With extended black and birchen, and dilutions of it such as blue, lavender, white, etc. the id+ pigment is enhanced, from which we get much darker shanks. Which is why I can get dark shanks on my Luna, splash d'Anver, probably split to lavender some where, we can't make heads or tails of her.
So these enhancers are called E/E or ER/ER.
To get clear yellows on black based birds we need eWH, eb, or ey or something else? (I think it is ID/ID the dermal melanin inhibitor, but I don't know) It is not completely understood. Sometimes the females will have dermal pigment while the males may have clear legs with our ER/ER birds.
Light undercolor in blacks and no leg pigment (yellow or white) are linked.
Cuckoo coloring can dilute black shanks to white.
Blue or recessive white may only dilute the shank coloring to blue.
Belgian mottled birds have blue/slate shanks. Since d'Anvers often have this color, I might assume that mottling doesn't dilute it.
White d'Anvers have pale shanks. I don't know about the type of white though.
So these enhancers are called E/E or ER/ER.
To get clear yellows on black based birds we need eWH, eb, or ey or something else? (I think it is ID/ID the dermal melanin inhibitor, but I don't know) It is not completely understood. Sometimes the females will have dermal pigment while the males may have clear legs with our ER/ER birds.
Light undercolor in blacks and no leg pigment (yellow or white) are linked.
Cuckoo coloring can dilute black shanks to white.
Blue or recessive white may only dilute the shank coloring to blue.
Belgian mottled birds have blue/slate shanks. Since d'Anvers often have this color, I might assume that mottling doesn't dilute it.
White d'Anvers have pale shanks. I don't know about the type of white though.
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