Palm cockatoos are among the few bird species which use tools to create sound. Because females are considered highly persnickety about their nests, males will only construct them in the hollows of certain trees. The males then use sticks to make drumming

Palm cockatoos are among the few bird species which use tools to create sound. Because females are considered highly persnickety about their nests, males will only construct them in the hollows of certain trees. The males then use sticks to make drumming