There are nineteen surviving hoopoe starling specimens in museums around the world (including one skeleton and two specimens preserved in spirit), with two in the Paris museum and four in Troyes. Additional skins in Turin, Livorno, and Caen were destroyed during World War II, and four skins have disappeared from Réunion and Mauritius (which now have one each). Specimens were sent to Europe beginning in the second half of the 18th century, with most collected during the first half of the 19th century. It is unclear when each specimen was acquired, and specimens were frequently moved between collections. It is also unclear which specimens were the basis for which descriptions and illustrations. The only known subfossil hoopoe starling specimen is a femur, discovered in 1993 in a Réunion grotto.