Samantha King/Supplied Experts have found kea have a 'warble' call, which can lead them to start playing, kicking stones and dancing about. There were a number of factors into kea behaviour that suggested they feel emotion or joy, Nelson said. The reason why kea play is unclear. In March, Auckland University research concluded kea have skills which mirror those from infants and chimpanzees. To date, only humans and chimpanzees have been shown to integrate social and frequency information in the same way the kea did.

Source: Stuff June 30, 2020 00:11 UTC