Study finds parrots weigh up probabilities to make decisions

Listen together: first time such skill has been shown outside of humans and apes. "While there have been hints that some other birds and certain monkeys may be able to do this, the team behind the new study say it is the first time this skill has clearly been shown outside of humans and other great apes. What’s more, it seems the birds harness multiple sources of information to decide which choice is a better bet." Nicola Davis and Eleanor Ainge Roy report for the Guardian.