These birds are literally playing basketball. Have you ever seen anything like this before? Birdball. This video is not from Larry Bird's house either.
This is one of the great things about the internet, we can see things that we've never seen before. We can also see things that we never thought we would see, like birds playing basketball.
Not sure who won this game. Though it looks like the yellow team should have because their fundamentals are better, and they are shorthanded and still scoring at will.