Scientific Name: Probosciger aterrimus
Palm cockatoos are found in the rainforests of New Guinea and far north Queensland and grow up to 60 cm long, making them the largest species of cockatoo in the world and the largest parrot in Australia. The red patch on their cheek changes colour when they become excited.
Male palm cockatoos are known to mark their territory by breaking off large sticks, holding them in their beaks and using them to drum against hollow branches, making a loud noise that can be heard 100 metres away.
They have very large, powerful bills (one of the largest of any parrot in the world), which enables them to crack open very hard nuts and seeds.