Book: Rice, Dennis G. 1983 Derby Porcelain: The Golden Years 1750- 1770.
• A similarly molded pair of finches Derby, c. 1760-65: fig. 72. p. 122, patch marks illustrated: fig. 150, p. 168Book: Barrett, Franklin A. & Thorpe, Arthur L. 1971 Derby Porcelain 1750- 1848.
• Derby examples of birds with similar molded and adorned bases: fig. 54Book: Bradley, Gilbert. 1990 Derby Porcelain 1750-1798.
• A pair of Derby canaries c. 1760 on similar bases: pl. 3, p. 35