Do some humans only see in black and white?

How do birds see? In other words, do birds see like humans? Or do they see shapes and colors, or in black and white?

• More specifically, what colors do they see/ what do they see is what I mean.

• Answer:

  Birds in general have very good vision Hawks can spot a small animal from thousands of feet away and accurately target it. If you had the visionof an eagle, you could see an ant crawling on the ground from the roof of a 10-story building. Parrots and related birds have very good colour vision. Actually better colour vision than mammals, While we are trichromats, having photo-pigments with sensitivities at  three peak wavelengths, birds have photo-pigments with sensitivities at  four or five peak wavelengths, making them true tetrachromats, or  perhaps even pentachromats. In some species, the visual spectrum extends  into the ultraviolet range, once thought to be visible only to insects.  It is as hard for us to imagine how birds perceive colour as it is for  a colour-blind person to imagine full colour vision; it is outside of our  experience.