Citron-crested cockatoo (Cacatua sulphurea citrinocristata) is one of endemic bird which endangered in Sumba islands and protected by in law. The study was aimed to analyze the determinants factor of the captive breeding success of citron-crested cockatoo. The research was conducted in January-March 2018. in Mega Bird and Orchid Farm Bogor. https://www.roneverhart.com/Sailytysastia-46x66x23-cm-49-2-L/