Which 사랑앵무 breeds come in 그레이윙?

Club breed standards describe 그레이윙 for the 잉꼬.

사랑앵무 pattern

그레이윙

Budgie mutation: gray wing markings instead of black, the body color diluted by about half.

2 사랑앵무 breeds list 그레이윙. It is in a club standard for 2 breeds.

Breed	WBO	ABS	COM	BS UK
잉꼬	표준 (“Greywing”)	표준 (“Greywing”)	표준 (“All Greywings of the Green series; All Greywings of the Blue series (inc. Yellowfaces)”)	표준 (“GREYWING”)
잉꼬그레이윙	표준 (“Greywing”)	표준 (“Greywing”)	표준 (“All Greywings of the Green series; All Greywings of the Blue series (inc. Yellowfaces)”)	표준 (“GREYWING”)