When we talk about the smartest animal, which one comes in our thought at first? But among birds we all know the ravens are much smarter than any other birds on earth. However we usually point out parrots as the best bird which can mimic voices. But have you ever seen raven mimicking human voice?
This is what the video shows us. Here a care taker has trained her raven to mimic human speech. Most of the time, this clever bird obey what the master says. But often it regains its own mindset to mess up with the care taker.