Pierre is a Lesser Sulfur-crested Cockatoo; he is around fifteen inches long, with white feathers and a yellow crest, with a yellow tint across his 'cheeks' and blackish beak and feet. All in all, he is a very normal bird. They clip his wings very marginally, as he is very well-behaved and generally good with strangers or humans that are not his two primary caregivers.
Background
Word is that Gideon d'Sarthe has had the bird for longer than he has had a daughter. In a sense, the cockatoo is a sibling to Marie, who also looks after him. There's not much to him, unless one tends to dig further than they should.