The Ducorps' Cockatoo (Cacatua ducorpsii), also known as the Solomon Corella or Broad-crested Corella, is a species of cockatoo endemic to the Solomon Islands. This small white cockatoo is larger than the Tanimbar Corella yet smaller than the Umbrella Cockatoo. The species is common across most of the Solomons, absent only from Makira in the south. It inhabits lowland rainforests, secondary forests, cleared areas and gardens.
The Ducorps' Cockatoo is about 30 cm (12 in) long. They are predominantly white. They have a blue eye ring and a recumbent crest which resembles a sail in its raised state. As other members of the subgenus Licmetis, it has a pale bill.
The Ducorp's Cockatoo nests in tree cavities. The eggs are white and there are usually two in a clutch. The eggs are incubated for about 25 days and the chicks leave the nest about 62 days after hatching.