I believe all birds have color vision. Hence the bright colors that male birds use to attract females (the changing red, white and blue of the tom' s head). It makes no evolutionary sense to develop something that increases your likely hood of predation with no benefit. If the birds could not see color there would be no need to be brightly colored. I believe this also limits their night vision. Like our eyes the cone cells that percieve color require more light than the rod cells that signal in black and white. Animals with limited color ability see better at night (deer, dogs, cats) than those that percieve color well (us).