This riddle is describing a penguin! Penguins are birds that have black and white feathers, swim very well, and do not fly.
Here's why:
- Black and white feathers: Penguins have a tuxedo-like color pattern.
- Swims very well: They are excellent swimmers, using their wings like flippers underwater.
- Doesn't fly: Unlike most birds, penguins cannot fly in the air.