laughing parrots

Studying more about birds and life on Earth and I stumbled upon Kea Parrots. 

These Parrots Can Make Other Parrots 'Laugh' - A First

The kea of New Zealand is the first non-mammal species to demonstrate infectious laughter, a new study says.

Forget the laughing kookaburra—kea are the birds that really tickle each other's funny bones.

The highly intelligent parrot has a specific call, that—like human laughter—puts other parrots that hear it in a good mood. This makes the kea the first known non-mammal to show contagious emotion, joining the ranks of humans, rats, and chimpanzees.

Scientists already knew that kea—native to New Zealand's mountainous South Island—make a non-threatening warbling sound while playing with other kea. But since the birds also warble alone, the noise could simply be an expression of pleasure.

Go here to see a video

NO LAUGHING MATTER

Kea play a lot—by themselves, with others, on the ground, or in the air.

While aloft, kea perform aerial acrobatics and chase each other. Playing with objects is usually solitary, with a bird manipulating an object with its beak and/or feet, but it can also involve birds tossing an object between each other. (Also see "Walruses Found Using Birds as Toys for First Time.")

Original.