Repeat: The most recent ancestor between birds and humans appears to have existed about 300 million years ago, so there would almost have to be an indirect connection via older primates - even possibly the silvery gibbon, which is unusual because it sings.
The most recent ancestor between birds and humans appears to have existed about 300 million years ago, so there would almost have to be an indirect connection via older primates - even possibly the silvery gibbon, which is unusual because it sings.