Which Undulat breeds come in Skiffergrå?

Club breed standards describe Skiffergrå for the Undulat.

Undulat color

Skiffergrå

A dark blue-gray: slate legs and beaks in poultry, slate turkeys, slate blue cavies, slate-gray nose leather, and the slate-gray skin of hairless Xoloitzcuintli and Peruvian Inca Orchids.

2 Undulat breeds list Skiffergrå. It is in a club standard for 2 breeds.

Breeds whose standards accept Skiffergrå

Breed	WBO	ABS	COM	BS UK
Undulat	Standard (“Slate (Blue)”)	Standard (“Slate”)	Standard (“Slates”)	Standard (“SLATE (BLUE)”)
UndulatSkiffer	Standard (“Slate (Blue)”)	Standard (“Slate”)	Standard (“Slates”)	Standard (“SLATE (BLUE)”)

See all Undulat colors, patterns and markings