Yes, falcons can see very far. Their eyesight is up to eight times better than a human’s, and they can spot prey from up to three kilometers (1.8 miles) away. This is because their eyes have a higher density of photoreceptor cells than human eyes, and their pupils can contract to a very small size, which gives them a greater depth of field.
Falcons also have a nictitating membrane, or third eyelid, which they can draw over their eyes to protect them from dust and debris. This is especially important when they are flying at high speeds.
Falcons’ keen eyesight is essential for their survival. They use it to spot prey, avoid predators, and navigate through their environment. It is also one of the things that makes them such successful hunters.