Watch as Einstein, an African grey parrot, mimics a dog's bark, a wolf’s cry and more.

Einstein is kept at a zoo in Knoxville, Tennessee, and recently turned 30 years old.

On average, African grey parrots live up to 45 years in captivity and 22.7 years in the wild.

They are known for their mimicry and their brains have been compared to three-year-old children.

For a full video of Einstein's tricks, click here.

Video by Zoo Knoxville