This is the call of a goose, or is it?

Actually, it's Darvin Gebhart, demonstrating his championship goose calling technique.

But there are also birds that use human language.

Talking birds have varying degrees of intelligence and speaking ability.

Some, like the crow, are able to mimic only a few words and phrases,

while some budgregars, parakeets on this side of the pond, have a vocabulary of over a thousand

words.

Sparky Williams was a famous budget that lived in England in the 1950s.

For six years he worked as a character actor on British radio and retired a wealthy bird. They call me pretty sparky.

I'm just a little bad, but I can talk and chatter on the day.

I'm a clever little badgy, aren't I?

Was that nice?

Alex, the African gray parrot, was another notable talking bird.

Alex had a limited vocabulary, about 150 words,

but he was famous for his cognitive abilities. He could recognize colors and shapes,

and also use the word none to describe the absence of quantity. In other words, he grasped the concept of zero.

What's here?

Truck. That's good boy truck.

Good parent.

How many?

How? That's right. Good boy. Well Well you can have a nut. Go choose your own.

Scientists continue to debate whether any other species can truly learn human

...