Cockatoo enters English through the global vocabulary of the Dutch colonial spice trade. Dutch traders of the Vereenigde Oostindische Compagnie (VOC, the Dutch East India Company) encountered these striking crested parrots throughout the Malay Archipelago and borrowed the local Malay name kakatua. The Dutch form kaketoe was then adopted into English as 'cockatoo' in the early 17th century. The Malay word's own etymology is debated: it may compound kakak ("elder sibling," a respectful term of address) with tua ("old"), yielding something like "old sibling" — possibly reflecting the bird's long lifespan and seemingly wise demeanor. Alternatively, it may be onomatopoeic, imitating the bird's distinctive harsh, screeching call.
Cockatoos (family Cacatuidae) comprise 21 species found in Australasia — Australia, New Guinea, Indonesia, the Philippines, and the Solomon Islands. They are distinguished from other parrots by their movable crests (which can be raised or lowered to express emotion) and by their generally larger size. Species range from the enormous palm cockatoo (Probosciger aterrimus) with its massive bill and red cheek patches to the small cockatiel (Nymphicus hollandicus), technically the smallest member of the cockatoo family.
Cockatoos are among the most intelligent birds, demonstrating tool use, problem-solving abilities, and even rhythmic musical behavior. A sulphur-crested cockatoo named Snowball gained scientific attention in 2009 for his ability to synchronize head-bobbing and foot-lifting to musical beats — one of the first documented cases of spontaneous rhythmic entrainment in a non-human animal. Research on cockatoos in Sydney has documented the social transmission of skills: bin-opening techniques spread through cockatoo populations, with birds learning from observing their neighbors.
Their longevity is remarkable. Cockatoos routinely live 40–60 years, with documented individuals exceeding 80. A sulphur-crested cockatoo named "Cocky Bennett" reportedly lived at the Tom Ugly's Point Hotel in Sydney until his death in 1916 at an estimated age of over 100, though the exact age is unverified. This longevity, combined with their intelligence and need for social interaction, makes cockatoos demanding pets — and the birds' loud vocalizations and destructive chewing behavior lead to many being surrendered or abandoned.