While the Catalina Macaw is a hybrid that may, rarely, occur naturally in the wild (some state that it does but I've been unable to find authoritative verification of this claim and some experts say wild macaws do not hybridize -- many thanks to Karrie Noterman for drawing my attention to this), they and several other first, second and third generation hybrid macaws are bred in aviculture. Some of the most common of these are listed below, together with their parent birds: