Dilute mutation budgies have body colour reduced/diluted by up to 80%. Throat spots are pale grey and so are head barring and wing feathers. Tail feathers of the Dilutes are either white or pale yellow or pale grey. Cheek patches are pale violet or pale blue. The difference between Greywing and Dilute can be seen in their cheek patches. Dilute budgies have their cheek patches very pale, much lighter than Greywings. Also - wing feathers are very pale grey in Dilutes and medium grey in Greywings.