Cockatoos face danger. They are at risk all around the world. People love them as pets because they can learn to talk. So, a lot of people trap them to sell. This causes their numbers to go down very fast.
Their homes also get destroyed by people building houses and cities where forests once stood. Cockatoos need trees for food and nests. Without those trees, cockatoos find it hard to live and breed happily like before.
Many die or move away in search of new homes.