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Leg color and comb type are not sex-linked traits, in any case.
I will have to correct part of your answer. Dermal melanin is a trait that is sex linked and is very important with respect to leg color. Blue shanks, green shanks, yellow shanks and white shanks are caused in part by the sex linked dermal melanin gene or its allele the dermal melanin inhibiting gene.
Blue shanks = white skin allele + sex linked dermal melanin allele(s)
Green shanks = 2 yellow skin alleles + sex linked dermal melanin allele(s)
yellow shanks= 2 yellow skin alleles + dermal melanin inhibiting allele(s)
white shanks = white skin allele + dermal melanin inhibiting allele(s)
Tim