After Martin Stangl's death in 1972, Stangl Pottery was bought by Frank Wheaton. Frank Wheaton attempted to run the company (with little success) until 1978 when he decided to close the pottery and sold off all the assets (including the real estate, name, and inventory) to the Pfalzgraftf Pottery Company. Pfalzgraph immediately sold off the inventory and converted the Flemington Stangl outlet into a Pfalzgraff outlet. The one thing that Frank Wheaton did keep were the original Stangl molds. These molds were reused by him at his plant in Millville, New Jersey throughout the 1980s to make a number of bird figurines. A few birds were distributed under the Wheaton Industries name. These birds can be found in numerous colors. The vast majority of the birds produced by Wheaton after Stangl's close were made for Royal Doulton and sold under the "Royal Cumberland" name. These "Royal Cumberland" birds were typically plain white or were white with yellow highlights. Typically these birds were marked Royal Cumberland or RC, though some (including many of the 3250 series ducks) were not marked.

• Various colors were made