Palm cockatoos are the only birds which use tools to create sound. Because females are considered highly persnickety in regard to their nests, males will only construct them in the hollows of certain trees. The males will then use sticks to make drumming noises to lure females to inspect the nests.

Palm cockatoos are the only birds which use tools to create sound. Because females are considered highly persnickety in regard to their nests, males will only construct them in the hollows of certain trees. The males will then use sticks to make drumming noises to lure females to inspect the nests.

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