You can Google for quite a variety of information regarding animal vision.
Surprisingly, birds, for one, have four types of color cones compared to our three. Also surprisingly, for what little I've seen, these color cones have sensitivies independent of each other. In other words, each wavelength of light can only be detected by one of their cones, not more than one. This gives them much better input for their color processing. My guess is they see many colorful objects slightly different but probably with greater vividness.
Deer, at least whitetail, have only two color cones, but they have larger eyes with other special features to enhance vision. One color cone may even allow vision in the near UV range. After learning this, I think of how funny it is that deer hunters think they are able to climb in deer blinds unnoticed by the deer because they, the hunters, think the sky is dark, but to the deer, the sky is relatively bright.
