the same way you do.
They use their eyes.
Birds is one of them
Many birds and fish have eyes on the sides of their heads so they can see in almost all directions and look for predators. Predator animals usually have eyes facing forward so they can track and catch prey easily.
Birds' eyes have more cones (color receptors) than humans, allowing them to see a wider range of colors and see ultraviolet light. Additionally, birds' eyes are larger in proportion to their body size than humans', giving them better visual acuity and depth perception.
All animals with eyes, including humans can see "black and white," or more specifically "light and dark." Birds can also see color. Birds have four types of color receptors in their eyes (humans have three) and can not only see all the colors we can see - they can see more, including partway into the ultra-violet range of the spectrum.
No. They are nocturnal so probably have good eye sight.
Many birds have their eyes on the sides of their head (owls are an exception). In order to focus on objects in front of them, they have to turn their heads.
Talons and sharp eyes to see their prey
they have 2 eyes
Birds may avoid animals with large eyes because they could be perceived as potential predators or threats. The presence of large eyes might signal alertness or aggressiveness, leading birds to view them as a potential danger. Additionally, birds may have evolved to avoid animals with large eyes as a survival strategy to reduce the risk of being attacked or eaten.
Not all birds have their eyes on the side (eg owls, eagles etc) don't. Those birds which hunt for their food have eyes that are front facing to give them stereo (3D) vision. However those birds which are hunted (prey) (eg Ducks, songbirds etc) have eyes on the side of their heads so that they can see all round themselves to spot hunters sneaking up on them. They do this at the expense of stereo vision. The same is true of mammals, hunters have stereo vision and prey (eg horses) have eyes more on the side.
No, humans cannot see ultraviolet light as our eyes are not sensitive to that wavelength. Some animals, such as bees and birds, have the ability to see in the ultraviolet spectrum.