Weird animal friendships are always interesting because there you can see a proof that the nature is not really cruel as we believe it is. It is amazing to watch a predator how it is refusing to eat an animal that is perfect catch for it and sometimes it decides to help or play with it.
Here is a beautiful example of such animal friendship where a little kitten plays with a parrot. Despite the fact that kitten is actually not old enough to be able to eat that parrot, you cannot see any sign of unfriendly acting there. They are just playing. I hope the things will remain same when that kitten grows.