I'm aware. I've hand-fed hundreds of hookbills and have worked with 60+ species, nearly double that with mutations, and attended bird shows and bird clubs, and for several years helped manage a parrot breeding operation in Texas.Actually it's powder down not dander, all birds produce dander but cockatoos produce powder down (as do 'tiels and Amazons). They don't produce oil because they live in a dry climate so that's why they have dust
