A jade bird fashioned in a similar pose was included in the Oriental Ceramic Society exhibition Chinese Jade Throughout the Ages, Victoria and Albert Museum, London, 1975, cat. no. 235; another is illustrated in Brian Morgan, Naturalism & Archaism: Chinese Jades from the Kirknorton Collection, London, 1995, pl. 26; and a third from the collection of Mr and Mrs B.H. Tisdall, was included in the exhibition Chinese Jades from Han to Ch'ing, Asia House Gallery, New York, 1980, cat. no. 81, where the author notes that the use of mottled stone is a characteristic of jade carvings of the 13th and 14th century.