There is always confusion when someone mentions "partridge" because world wide there is more than one genotype that people call partridge. Often people call e+ or wild types partridge , in this type the hen is brownish with a rosy breast and lots of shafting in her feathers. What is most commonly called Partridge in the US in wyandottes and Plymouth rocks etc. is also called golden pencilled. This is on an Eb(brown on the e allele) and uses Pg (the pattern gene) to cause a multiple laced pattern on the feathers(single lacing is caused by Pg and the addition of columbian.
The thing with golden penciled partridge is that in many European countries the birds are double mated, that is, the lines which are used to produce show quality pullets and the lines which are used to produce show quality cockerels are different. Many times the females with distinct lacing produce males with stippling in their chests and hackles of poor color(according to the standard, but still beautiful). The show quality cockerels often are split for Pg, but that means they produce hens with mossy indistinct patterning.
Here is a Partridge Brahma Owned by a woman on the American Brahma Club Forum
Here is a hen
The thing with golden penciled partridge is that in many European countries the birds are double mated, that is, the lines which are used to produce show quality pullets and the lines which are used to produce show quality cockerels are different. Many times the females with distinct lacing produce males with stippling in their chests and hackles of poor color(according to the standard, but still beautiful). The show quality cockerels often are split for Pg, but that means they produce hens with mossy indistinct patterning.
Here is a Partridge Brahma Owned by a woman on the American Brahma Club Forum

Here is a hen
