e/Greywing budgerigar mutation

Information
has gloss	eng: The Greywing budgerigar mutation is one of approximately 30 mutations affecting the colour of budgerigars. It is the underlying mutation of the Greywing variety. When combined with the Clearwing mutation the variety is known as a Full-bodied Greywing.
lexicalization	eng: Greywing budgerigar mutation
instance of	c/Budgerigar colour mutations