Which اردک breeds come in زرد?

Club breed standards describe زرد for the خاکی کمبل و کال.

اردک color

زرد

Yellow: the yellow Labrador (cream to fox red), yellow canaries and budgies, yellow poultry skin, legs and beaks, and yellow eyes.

۱۱ اردک breeds list زرد. It is in a club standard for ۲ breeds.

Breed	PCGB	BWA
خاکی کمبلمنقار	استاندارد (“yellow bills rather than pink ones”)	استاندارد (“yellow bills rather than pink ones”)
کالمنقار	استاندارد (“yellow-orange bill unlike the Aylesbury's, which was flesh coloured”)	استاندارد (“yellow-orange bill unlike the Aylesbury's, which was flesh coloured”)