Yellowcrested

Yellowcrested is a descriptive term used in English for species that display a yellow crest or crest-like feature on their heads. The best-known example is the yellow-crested cockatoo (Cacatua sulphurea), a parrot native to the Lesser Sunda Islands of Indonesia. This species is noted for its white plumage and a bright yellow crest that can be raised or lowered. The yellow-crested cockatoo is listed as critically endangered by the International Union for Conservation of Nature (IUCN), with declines driven by habitat loss and illegal capture for the pet trade. Conservation efforts include international trade restrictions under CITES and captive-breeding programs, though reintroduction to the wild remains challenging.

The term yellowcrested is occasionally applied to other organisms in regional or informal usage, reflecting a general pattern of using crest coloration in common names. However, such uses are less standardized, and the yellow-crested cockatoo remains the most widely recognized reference.

Taxonomic treatment of yellow-crested taxa has varied, with some populations historically treated as subspecies of Cacatua sulphurea and others elevated to distinct species by certain authorities. In practice, the exact application depends on the taxonomic source.

In summary, yellowcrested denotes a yellow crest feature and is most prominently associated with the yellow-crested cockatoo, while acknowledging that the descriptor can appear in other regional names describing crest-colored organisms.