Mockingbirds can imitate any sound from a squeaking door to a cat meowing.
An ostrich’s eye is bigger than its brain.
An ostrich can run at speeds up to 45 miles per hour.
A bird’s eye takes up about 50 percent of its head; our eyes take up about 5 percent of our head. To be comparable to a bird’s eyes, our eyes would have to be the size of baseballs.
A bird sees everything at once in total focus. Whereas the human eye is globular and must adjust to varying distances, the bird’s eye is flat and can take in everything at once in a single glance
The penguin is the only bird that can swim, but not fly. It is also the only bird that walks upright.